Anime Like Gundam Build Fighters: GM no Gyakushuu

Fueled by an insatiable drive for discovery, scientist Rintarou Okabe, alongside his kind but forgetful friend Mayuri Shiina and his roommate Itaru Hashida, founds the Future Gadget Laboratory. While their ambition is to invent technology that defies human comprehension, their most notable creation to date is a microwave that transforms bananas into an eerie green substance. Okabe's attendance at a symposium regarding time travel triggers a series of events that unveil the Phone Microwave's latent capabilities. He realizes the device can transmit text messages to the past, and as he tests this power, the clandestine organization SERN becomes dangerously involved. As Okabe contends with the fallout of shifting timelines, he and his friends face relentless peril. He is forced to repair the fractures in history while fighting to preserve his sanity and safeguard the people he holds dear.

On August 10, 2010, the Holy Empire of Britannia initiated a campaign to conquer Japan. Thanks to their deployment of Knightmare Frames, new mobile humanoid armored vehicles, the operation concluded within a single month. Stripped of its sovereignty and identity, the nation was renamed Area 11. Its inhabitants, now labeled Elevens, struggle for survival while Britannian aristocrats enjoy comfort within their enclaves. In response, various resistance factions have emerged across Area 11 to fight for independence. Lelouch, an exiled Britannian prince living under the guise of a student, finds himself drawn into the turmoil on the island nation. Following a chance meeting with a mysterious girl named C.C., he acquires the Geass, the power of the king. This ability grants him the power to command absolute obedience from anyone, allowing Lelouch to finally execute his plan to destroy Britannia from within.

By 2071, humanity has spread across the stars yet remains plagued by terrestrial issues such as addiction and crime. The narrative centers on Spike Spiegel and Jet Black, bounty hunters who traverse the cosmos tracking down felons for a living. Beneath Spike's carefree demeanor hides a troubled past, while Jet struggles with his own painful memories as he tends to both Spike and the Bebop, their ship which doubles as their home. They are eventually joined by Faye Valentine, a charming con artist; Edward Wong Hau Pepelu Tivrusky IV, a quirky child; and Ein, a genetically modified Welsh corgi. As the Bebop crew develops strong bonds and apprehends various criminals, they face a looming threat connected to Spike's dark history. Confronted by a rival's perilous plot, Spike must decide between seeking vengeance or valuing his new family.

Parasitic aliens descend from space to infiltrate Earth, seizing human brains to transform their hosts into predators. When seventeen-year-old Shinichi Izumi narrowly avoids full possession, a parasite named Migi fails to reach his brain and instead takes control of his right hand. Deprived of its primary objective, Migi must depend on Shinichi for survival, binding them in an uneasy alliance as they confront other dangerous parasites intent on eradicating this deviation from their kind.

Fifteen years following the devastating Second Impact, humanity faces relentless assaults from colossal entities known as Angels targeting Tokyo-3. Conventional military might proves futile against these foes, leaving survival in the hands of NERV, a clandestine group commanded by the stern Gendou Ikari. NERV deploys giant humanoid mechs called Evangelions, armed with advanced weaponry and shielded by Absolute Terror Fields, to combat the Angels. Shinji Ikari, a fourteen-year-old, returns to Tokyo-3 after years of abandonment by his father. Haunted by the loss of his mother and his father's icy demeanor, Shinji fears forming attachments. His world shifts upon meeting Misato Katsuragi, a twenty-nine-year-old high-ranking NERV officer who offers the warmth and care he has long lacked. An abrupt Angel incursion compels Shinji to act, exposing Gendou's true motive for summoning him: Shinji possesses the unique ability to synchronize with Evangelion Unit-01, a robot that responds to his biological signals. Despite the severe psychological strain of piloting an Evangelion, Shinji becomes Tokyo-3's guardian against the angelic threat, oblivious to his father's concealed agenda.

One year after the failed Black Rebellion against the Holy Britannian Empire and the mysterious disappearance of Zero, the Black Knights in Area 11 struggle to survive without their charismatic leader. Deprived of their former strength, the resistance can no longer effectively oppose the brutal policies Britannia enforces on the Elevens to crush any lingering defiance. Meanwhile, Lelouch Lamperouge, having lost all memory of his past identity, lives a quiet life as a student at Ashford Academy, enjoying time with his friends. However, his former ally C.C., refusing to give up on their shared goal, works to restore Lelouch's memories, hoping that the strategic genius known as Zero will return to complete their unfinished revolution.

In a distant future, humanity teeters on the brink of extinction because of colossal beasts known as Klaxosaurs. The survivors reside within massive, fortified metropolises called Plantations. Within these walls, children are raised exclusively to operate giant mechas termed FranXX, which combat the Klaxosaurs in mandatory male-female pairings. Bred solely for this purpose, these pilots grow up isolated from the outside world, convinced that their sole function is to defend humanity. Hiro, a prospective FranXX pilot, is left demoralized and lacking self-assurance after failing an aptitude test. He skips his squad's graduation ceremony and retreats to a secluded forest lake, where he encounters a mysterious girl with two horns protruding from her head. She reveals her codename is Zero Two, a legendary pilot infamous as the "Partner Killer." As Hiro attempts to make sense of this encounter, a Klaxosaur assaults the plantation. Zero Two engages the beast with her FranXX but sustains severe damage, crashing her mecha near Hiro. Discovering her original partner is dead, she requests that Hiro join her as a pilot. Together, they effortlessly vanquish the Klaxosaur. With Zero Two at his side, Hiro gains a second opportunity to surmount his previous failures, though the price remains uncertain.

Deep beneath the surface in an isolated underground village, Simon and Kamina spend their days together. Kamina is a bold, reckless dreamer eager to forge his own path, whereas Simon is a shy youth with no grand aspirations. While digging one day, Simon stumbles upon a peculiar artifact that awakens an ancient war machine they christen Lagann. Equipped with this new weapon, the pair defends their home against a sudden assault from the surface, receiving crucial aid from Yoko Littner, a fierce red-haired warrior who roams the upper world wielding a colossal firearm. Following their triumph, the sky is revealed to them for the first time, igniting a shared desire to explore the desolate surface alongside Yoko. They quickly become entangled in a war against the Beastmen, monstrous humanoids who terrorize the remnants of humanity with their powerful mecha known as Gunmen. Despite facing countless hardships and defeats, the trio battles valiantly alongside other survivors to reclaim the surface and uncover a cosmic mystery that stretches across the galaxy.

In the 22nd century, Japan operates under the Sibyl System, which measures an individual's criminal potential via their Psycho-Pass. This technology allows Inspectors to identify and neutralize societal threats, frequently using lethal force, while being supported by Enforcers—ex-convicts given conditional liberty to aid the Inspectors. Akane Tsunemori, a principled young Inspector, enters this environment with a steadfast belief in justice. Partnering with the experienced Enforcer Shinya Kougami, she begins to notice flaws in the Sibyl System's judgments, undermining her initial convictions. As she grapples with these revelations, Akane starts to question the true essence of justice and whether it can truly be realized through a system that might be fundamentally defective.

Beneath the surface of the earth lies the Abyss, a massive chasm filled with bizarre creatures and ancient relics from forgotten times. The mystery of its origin and the secrets it holds have drawn countless explorers, known as Divers, to descend into its depths at tremendous risk. Among these, the most revered and brave are the White Whistles, celebrated as heroes by those who fear the downward journey. Riko, whose mother is the legendary White Whistle Lyza the Annihilator that disappeared during an expedition, dreams of reaching the Abyss's deepest levels. Currently, she is only a novice Red Whistle, restricted to the uppermost layer. One day, she discovers a peculiar robot resembling a young boy who has no memory of his past. Naming him Reg, Riko suspects the advanced technology within him must come from the depths of the Abyss. Together, they embark on a journey into the abyssal darkness: Reg searches for his lost memories, while Riko is resolved to reach the bottom herself. However, they remain ignorant of the brutal realities that await them in the unforgiving world of the Abyss.

In a world where Spontaneous Human Combustion has become a grim reality, ordinary citizens can suddenly transform into raging, flaming creatures known as Infernals. These initial victims represent the first cases of Human Combustion, whereas later generations, called pyrokinetics, possess the ability to control their flames without losing their humanity. To combat this threat and uncover its origins, the Tokyo Armed Forces, the Fire Defense Agency, and the Holy Church of Sol established the Special Fire Force. Shinra Kusakabe, a gifted third-generation pyrokinetic nicknamed Devil's Footprints for his power to ignite his feet, enthusiastically joins the lively Special Fire Force Company 8. Committed to the unit's mission of halting rampaging Infernals and laying their souls to rest, Shinra aspires to become a hero who rescues people from fiery peril. However, the truth diverges sharply from the heroic tale Shinra envisioned. The Special Fire Force is rife with internal strife and discord among its brigades, while reports of bizarre Infernal sightings surge throughout Tokyo. Furthermore, a clandestine organization claims to hold knowledge regarding the fatal fire that consumed Shinra's family twelve years ago. Confronting challenges both within and beyond the Fire Force, Shinra battles to reveal the truths concealed behind the burning mysteries that have always eluded him.

Ganta Igarashi begins an ordinary day preparing for a school excursion to Deadman Wonderland, an amusement park where incarcerated performers stage perilous shows for spectators. However, his routine is shattered when a figure cloaked in red brutally massacres his entire class. Wrongfully accused and sentenced to death, Ganta is incarcerated within the very facility he was meant to tour. Thrust into a harsh environment populated by vicious inmates and bizarre supernatural abilities, Ganta is forced to wear a lethal collar that only deactivates when he succeeds in the prison's deadly competitions. To endure this treacherous setting where trust is scarce, he must constantly gamble with his life while hunting down the enigmatic "Red Man" to clear his name.

In 2029, the catastrophe known as Lost Christmas unleashed the Apocalypse Virus upon Japan, triggering mass death and societal collapse. The United Nations responded by deploying the GHQ to quarantine the outbreak, an action that effectively ended the nation's political sovereignty. Ten years later, Japan remains under the heavy-handed rule of the GHQ, suffering under their oppression. Determined to break this tyranny, the resistance group Funeral Parlor, commanded by the charismatic Gai Tsutsugami, plots to liberate the country by stealing a vial of the Void Genome. This crucial item falls into the hands of Inori Yuzuriha, a popular online singer, making her a prime target for the GHQ's Anti-Bodies squad. Cornered, Inori hides in a warehouse where she meets Shuu Ouma, an introverted high school student and devoted fan of her music. After Shuu assists Inori, he is thrust into the center of the conflict. When the Void Genome shatters in his grasp, he awakens to the Power of the Kings. Struggling to master this newfound ability, Shuu is compelled to join the struggle against the ruthless rulers and fight for Japan's freedom.

In Edo, a city where samurai once thrived with courage and ambition, the arrival of the powerful alien race known as the Amanto shattered those dreams. The former shogunate now operates under foreign rule, and a new law prohibits carrying swords in public. Gintoki Sakata, a peculiar man with silver hair and a habit of carrying a wooden sword, continues to live as a samurai despite the ban. As the leader of Yorozuya, a small business that takes on odd jobs, he often sets out on missions to help others, though his methods are unusual and frequently chaotic. Alongside Shinpachi Shimura, a bespectacled youth training to be a samurai, Kagura, a strong and gluttonous tomboy, and Sadaharu, their enormous pet dog who likes to bite heads, the Yorozuya navigate the many challenges posed by the diverse residents of Edo, from alien nobility to local gang conflicts.

In the early 21st century, magic has evolved from myth into a codified science taught as a specialized subject at various educational institutions. First High School, a renowned academy for aspiring magicians, segregates its student body into two factions based on entrance exam results: the high-scoring "Blooms" who join the First Course, and the "Weeds" who are assigned to the Second Course. The narrative centers on siblings Tatsuya and Miyuki Shiba as they enroll at First High School. Following their examinations, Miyuki's extraordinary aptitude earns her a place in the First Course, whereas Tatsuya is demoted to the Second Course as a "Weed" due to his lackluster practical performance. Despite this classification, Tatsuya harbors profound theoretical insight, exceptional martial arts skills, and distinct magical capabilities, establishing him as a true irregular within this structured magical society.

Three decades ago, a colossal "spatial quake," a baffling spatial anomaly, ravaged the Eurasian continent, claiming more than 150 million lives. Although these disturbances have since occurred globally on a reduced scale, the threat remains. Shidou Itsuka is a typical high schooler residing with his younger sister, Kotori. When a spatial quake looms over Tengu City, Shidou dashes to shield Kotori but becomes engulfed in the eruption. At the epicenter, he encounters a mysterious girl identified as a "Spirit," a supernatural entity whose existence triggers these quakes. Shidou is immediately thrust into a clash between this girl and the Anti-Spirit Team, a brutal organization committed to exterminating Spirits. However, a third faction known as "Ratatoskr" appears, advocating for the preservation of Spirits. To Shidou's shock, this group is commanded by his own sister. Following the confrontation, Kotori compels Shidou to enlist in their mission, unveiling a peculiar strategy to neutralize the Spirit threat: making them fall in love with him. The future of the world now hinges on Shidou's capacity to capture the hearts of the Spirits.

In the neon-soaked metropolis of Night City, a future version of California, dreams frequently meet a violent demise. David Martinez, a teenager residing in the city's slums, is driven by his mother's dying wish for him to join Arasaka, the globe's premier security corporation. Enrolled in the elite Arasaka Academy and sustained by his mother's tireless work, David strives to climb the corporate ranks. His world is upended when a savage clash with a local gang leaves him devastated. Amidst his despair, David uncovers Sandevistan cyberware, a prosthetic implant that bestows superhuman speed. Fueled by fury, he installs the device and exacts vengeance on one of his assailants, an act that leads to his expulsion from the academy and shatters his chance to fulfill his mother's aspirations. Possessing these new capabilities, David draws the notice of the mysterious data thief, Lucyna "Lucy" Kushinada, who presents him with a new direction. However, aligning with Lucy plunges David into the realm of Edgerunners—cyborg outlaws who break the law for profit. The Edgerunner lifestyle is perilous, often ending in cyberware malfunctions or mental collapse, yet in his battle against a corrupt system, David is prepared to wager everything.

Following the loss of a close friend, Shinji Ikari descends into emotional paralysis, rendering him unable to pilot Evangelion Unit-01. Consequently, his father, Gendou Ikari of NERV, frantically maneuvers to outwit the clandestine organization SEELE, as both factions pursue their own apocalyptic objectives. SEELE intends to merge human souls into an Evangelion unit to forge a divine being, whereas Gendou schemes to revert humanity to a primal state so he can reunite with his late wife, Yui. SEELE initiates a military assault on NERV headquarters, resulting in the deaths of numerous NERV personnel. Asuka Langley Sohryu takes the controls of Evangelion Unit-02 to battle SEELE's overwhelming forces. Amidst erupting chaos and societal collapse, Captain Misato Katsuragi searches for Shinji, who remains concealed within NERV, holding the fate of the world in their hands.

After failing his university entrance exams, eighteen-year-old Tsukasa Mizugaki secures a position at Sion Artificial Intelligence Corporation through personal connections. The firm produces Giftias, sophisticated androids nearly identical to humans yet bound by a strict operational limit of 81,920 hours, or roughly nine years and four months. Tsukasa joins Terminal Service One, a unit dedicated to retrieving Giftias nearing the end of their lifespan to prevent memory loss and potential hazards. Soon after his arrival, he is paired with Isla, a seasoned team member who is a strikingly beautiful Giftia. Despite her delicate and reserved nature, she proves exceptionally capable in retrieval duties. As their time together nears its inevitable end, Tsukasa grapples with his deepening feelings for Isla while accepting the harsh truth that nothing lasts forever.

Most people dismiss the existence of aliens, time travelers, and espers, and high school student Kyon is no different. However, his mundane outlook is shattered from the first day of school by Haruhi Suzumiya, a girl intent on reshaping his perception of reality. During class introductions, Haruhi explicitly states her disdain for ordinary life and her burning desire to encounter supernatural entities. Unable to find an existing club focused on the paranormal, she impulsively establishes the "Spreading FUN throughout the School with Haruhi Suzumiya Club," widely known as the SOS Brigade. Haruhi then enlists Kyon alongside three others: the quiet, bookish Yuki Nagato; the shy upperclassman Mikuru Asahina; and the perpetually cheerful Itsuki Koizumi. While they seem unremarkable, each member conceals secrets tied to Haruhi's extraordinary nature. Thrown into her chaotic universe, Kyon joins the SOS Brigade and embarks on numerous adventures that slowly unveil the true essence of their enigmatic leader.

The Republic of San Magnolia claims to have achieved a war with zero civilian casualties against the Giadian Empire, yet this assertion is nothing more than propaganda. While the silver-haired Alba citizens of the Republic's eighty-five sectors live safely behind protective barriers, those with different appearances are hidden away in a clandestine eighty-sixth sector. Labeled as the Eighty-Six, these individuals are compelled to fight the Empire's automated Legion forces under the command of Republican Handlers. Vladilena Milizé assumes the role of Handler for the Spearhead squadron, replacing the previous leader. Although she faces isolation from her peers for advocating on behalf of the Eighty-Six, she strives to challenge their unjust treatment. Simultaneously, Shinei Nouzen, the captain of Spearhead, shoulders the heavy burden of being the sole survivor of every squadron he has commanded, carrying forward the memories and wishes of those who have fallen. As their fates converge, it remains uncertain whether their meeting will spark a beacon of hope or be consumed by the fires of despair.

In 2021, a parasitic virus named Gastrea turns infected humans into terrifying monsters. The remaining survivors live within fortifications constructed from Varanium, the sole substance capable of repelling Gastrea. The Tendo Civil Security identifies specific young girls as "Cursed Children" and assigns them the rank of Initiator. Because their bodies harbor traces of the virus, these Initiators possess immense abilities. Every Initiator is matched with a Promoter whose duty is to guide and safeguard them. These pairs are sent on missions to fight the Gastrea-born creatures and protect human communities. Black Bullet centers on Enju Aihara, an Initiator, and her Promoter, Satomi Rentaro, as they undertake missions to counter the escalating Gastrea threat in their home city of Tokyo.

In 1988, a young boy with psychic abilities triggers a catastrophic explosion that destroys Tokyo and ignites World War III. To avert future disasters, he is captured and hidden from the public. Thirty years later, the reconstructed Neo-Tokyo is ravaged by gang violence and anti-government unrest. Shoutarou Kaneda leads "the Capsules," a notorious gang known for their oversized custom motorcycles and their bitter feud with "the Clowns." During a confrontation with their rivals, Kaneda's best friend, Tetsuo Shima, collides with an esper escaping a government facility. This incident awakens Tetsuo's dormant psychic powers, which quickly spiral out of control. As authorities struggle to contain this new threat to the city, Tetsuo becomes increasingly powerful, transforming into the epicenter of the escalating chaos.

Rintarou Okabe, the self-proclaimed mad scientist notorious for his eccentricity, has fallen into profound despair after failing to save Makise Kurisu. Now depressed and withdrawn, he abandons his scientific pursuits to live as an ordinary college student, attempting to flee the haunting memories of his time-traveling adventures, which remain a secret to everyone around him. While working as a receptionist at a technology conference, Okabe meets Maho Hiyajo, an energetic young woman who later provides translation for a lecture by Professor Alexis Leskinen. During the event, Alexis and Maho introduce Amadeus, an advanced artificial intelligence capable of replicating a person's memories, personality, and behaviors with extraordinary precision. Following the lecture, Okabe learns that Maho and Alexis were former classmates of Kurisu and have created a digital recreation of her. Tasked by Alexis with observing the AI's actions, Okabe is given the chance to interact with a digital version of his deceased friend. Caught in a dangerous confrontation with his past, Okabe must face painful truths and navigate the consequences of interfering with the natural flow of events.