Manga Like Under Ninja

After three years of intense training, Saitama, once an ordinary man, has attained overwhelming power, able to defeat any enemy with a single punch. Driven by a desire to use his new strength, he sets out on a path as a hero, but soon grows disillusioned by how easily he wins and the absence of any worthy opponent to challenge him. The cyborg Genos, impressed by Saitama's incredible power, asks to become his apprentice. Saitama, however, realizes that because he is not registered with the Hero Association, he remains unknown and overlooked by the public. To gain more recognition, Saitama agrees to register alongside Genos, on the condition that Genos becomes his disciple. Together, they aim to climb the ranks of heroes, seek out powerful enemies, and earn the admiration and respect of others.

Codename "Twilight," a top spy from Westalis, carries out missions to maintain peace and prevent any incident that could spark a war between Westalis and its neighboring country, Ostania. His next assignment requires him to infiltrate the prestigious Eden Academy by posing as a family man, with the goal of gathering information on influential Ostanian politician Donovan Desmond. Adopting the alias "Loid Forger," Twilight takes in Anya, an orphaned girl who can read minds, to play the role of his six-year-old daughter. For his wife, he selects Yor Briar, an office worker pretending to be in a relationship to satisfy her social circle. Unbeknownst to Loid, Yor is actually the deadly assassin known as "Thorn Princess," and this union provides her with an ideal cover. Anya, unknown to both Loid and Yor, is an esper—the result of secret experiments that gave her telepathic powers. Despite learning the truth about her new parents, Anya is thrilled that they are both covert operatives. She keeps their secrets, ensuring their charade continues. As "The Forgers," Loid, Yor, and Anya must maintain their facade while pursuing their individual goals. Through their interactions, they come to understand that family can transcend biological connections.

Momo Ayase is in a bad mood after being rejected. While out, she sees a boy getting bullied and steps in to help. The boy is deeply into the occult and tries to talk to Ayase about supernatural topics, thinking they have something in common. But Ayase insists she believes in ghosts, and they argue over which is more real. To settle the debate, they each go separately to places tied to either the occult or ghosts—Ayase picks the occult, and the boy picks ghosts. When they reach their spots, they find out both the occult and ghosts are actually real. This discovery throws Ayase and the boy into a series of adventures where they deal with all the supernatural and occult events they come across, hoping to get back to a normal life.

In Death City, the Death Weapon Meister Academy, founded by Shinigami the Grim Reaper, serves as a bastion of order. The academy trains Meisters and Demon Weapons—humans who can transform into weapons—to defend humanity from evil forces. The ultimate goal for a Meister is to forge a "Death Scythe" fit for Shinigami, which requires their weapon partner to consume the souls of 99 evil humans and one witch. Maka Albarn and her weapon partner, Soul Eater "Soul" Evans, are students at the academy striving to achieve this. Their journey includes the loud Black☆Star and his flexible partner, Tsubaki Nakatsukasa, along with the precise Death the Kid—known simply as Kid—and his twin partners, Patricia "Patty" and Elizabeth "Liz" Thompson. Each team aims to be the best Meister and Demon Weapon pair, facing various missions, challenges, and academic trials along the way. Despite their goals, the group becomes entangled in numerous mysteries. As new enemies emerge and hidden secrets are uncovered, Maka, Soul, and their friends must confront threats far greater than ordinary human foes, fighting to protect both the academy and the world.

In the grim and chaotic district known as Hole, where darkness and decay reign supreme and survival is a constant struggle, the powerful magic users hold absolute sway over a populace they regard as mere insects. The streets are rife with violence, and the hospitals overflow daily with the victims of murder, mutilation, and ruthless experimentation. Amidst this desolate landscape, a few dare to challenge the magic users' dominion. One such figure is Caiman, a creature more akin to a reptile than a human, driven by a relentless pursuit of truth. Equipped with two trusted bayonets and blessed—or cursed—with immunity to magic, he stalks through Hole, haunted by his own appearance and plagued by nightmares. His sole allies against these malevolent sorcerers are his insatiable appetite and Nikaidou, the proprietor of the diner Hungry Bug, who stands steadfast beside him. Dorohedoro unfolds in a nightmarishly designed world, blending dark humor and light-hearted moments with unflinching depictions of brutality and death. Through the tangled lives of Hole’s inhabitants, the series crafts a singular universe of eerie origin and bleak aesthetics, unsuitable for the faint of heart.

Eikichi Onizuka, a 22-year-old former gang member carrying a reputation as a pervert, unexpectedly secures a position as a teacher. The story follows Onizuka as he works to outsmart and earn the trust of his rebellious Class 3-4, a group determined to get him fired. Along the way, he must confront obstacles including the irritable, balding Vice Principal Hiroshi Uchiyamada, old enemies from his biker days, and his own unorthodox teaching methods. Despite these challenges, Onizuka perseveres, helping his students, pursuing the affections of teacher Azusa Futsuyuki, and striving to live up to his self-given title. This collection also includes the side story "GTO: Great Toroko Oppai♡" (Tomoko's Big Adventures).

An enormous explosion reduces the moon to a permanent crescent, forever altering the night sky. A yellow, tentacled monster then appears before global leaders, claiming responsibility for the catastrophe and threatening to destroy Earth within a year. Traveling at Mach 20, the creature makes an unconventional demand: to teach at the esteemed Kunugigaoka Junior High School. To contain the threat, the government reluctantly agrees, placing the students of Class 3-E on an impossible quest—to assassinate the creature responsible for the lunar devastation. While bearing the burden of saving the world, the students also face personal struggles. Positioned at the bottom of Kunugigaoka’s rigid academic hierarchy, they suffer from the bias of teachers and classmates. Overwhelmed with feelings of hopelessness, they question their ability to achieve even basic life goals, let alone confront a being far more powerful than any human. As the enigmatic Koro-sensei imparts lessons in both murder and academics, however, the students slowly gain the courage to rise up against what may be the greatest adversary in history. One-Shot Included: Volume 21: Tokyo Department Sensou Taikenki (Tokyo Department Store War Chronicles)

Tarou Sakamoto was once the most feared hitman in the underworld. At the peak of his career, he chose to leave his criminal life behind after falling in love with a woman. Now, he lives a quiet life as a convenience store clerk. However, escaping his violent past proves harder than Sakamoto expected. His old enemies and acquaintances from the underworld refuse to accept his retirement and keep targeting him. Unable to use lethal force, Sakamoto comes up with creative ways to stop his attackers while protecting his family, his workplace, and the peaceful town he calls home.

In "The Breaker," Yi Shi-Woon, called Shioon, is bullied daily at Nine Dragons High School by Ho Chang and his gang. His life changes when a mysterious man named Han Chun Woo observes one of the attacks and criticizes Shioon for not defending himself. Shioon later discovers that Chun Woo is actually the new substitute English teacher at his school. Determined to end the bullying, Shioon enrolls in a martial arts academy. On his way there, he encounters Chun Woo again, this time being ambushed by a group of hostile men. Chun Woo handles the situation with his martial arts skills, and Shioon captures it on video. Using this evidence, Shioon forces Chun Woo to teach him self-defense. Despite initial reluctance, Chun Woo agrees and introduces Shioon to the hidden world of martial arts, known as Murim. However, Shioon remains unaware of Chun Woo’s dark past and the dangerous side of Murim. The story follows how Chun Woo will guide Shioon and protect him in this treacherous world.

In "Mob Psycho 100," Shigeo "Mob" Kageyama is an eighth-grade student who possesses immense psychic powers but keeps them hidden due to their potentially destructive nature and the unwanted attention they draw. He suppresses his abilities by working for Arataka Reigen, a self-proclaimed esper who exploits Mob's talents for his own gain. Mob spends his time performing exorcisms for Reigen. Driven by his desire to win the affection of his childhood friend, Tsubomi Takane, Mob strives to become more likable. Yet, various obstacles continually disrupt his everyday life, gradually eroding his grip on his suppressed emotions. As his pent-up feelings intensify, what will happen when he finally reaches his breaking point remains uncertain.

Tsunayoshi Sawada, frequently dismissed as "No-Good Tsuna," endures a life filled with failure—his grades are poor, he lacks athletic ability, and he has no companions. His situation worsens when he learns that his crush, Kyouko Sasagawa, is already in a relationship. What Tsuna does not realize is that he is a descendant of Giotto, the founder of the legendary Vongola Famiglia. His world shifts dramatically with the sudden appearance of Reborn, an infant who claims to be the world's top hitman. Sent by Vongola the Ninth, Reborn's purpose is to train Tsuna to become a suitable candidate for the prestigious Vongola leadership. Despite Reborn's efforts, Tsuna strongly resists the notion of becoming a mafia boss. How will the world's most skilled hitman handle Tsuna's defiance? Can Reborn force Tsuna to accept his path, or will he find a way to turn Tsuna's resistance into strength? This narrative follows Tsuna's reluctant progress toward accepting his role as the future leader of the underworld, aided by his friends and his extraordinary tutor.

Ken, a high school student from a wealthy background, becomes a notorious fighter after losing his parents due to their connections to the Yakuza. Driven solely by his affection for his classmate Yumi, Ken's world shifts when he learns of her decision to move to Korea to join the police force. Determined to be with her, he leaves his life in Japan behind and follows her. Unexpectedly, Ken finds himself leading a local gang and keeps this new role hidden from Yumi. As their leader, the gang is renamed the Sun-Ken Rock Group under his guidance. One-shot included: Volume 12: Trigun: The Lost Plant

At Ishiyama High, a school infamous for its delinquent students, first-year Tatsumi Oga—nicknamed "Demon King"—rules supreme over those he has defeated. One day, after taking down a gang that attacked him, Oga ends up looking after an abandoned infant. Despite his initial panic, he brings the baby to his best friend, Takayuki Furuichi, where they encounter Hildegard, a demon maid. She reveals that the child is Kaiser de Emperana Beelzebub IV, sent by his father, the Great Demon Lord Beelzebub III, to Earth with a mission to destroy humanity. Hildegard warns Oga that if he strays more than 15 meters from the baby, he will face immediate death. With his rough demeanor and history of violence, Oga reluctantly becomes the caregiver of the demon infant. The series follows his journey as he deals with both demonic beings and his dangerous peers, all while acting as an unconventional guardian and mentor to Baby Beel.

In an abandoned building located in South Korea, Cadis Etrama Di Raizel—commonly referred to as Rai—steps out of a white coffin, presenting an elegant and strikingly handsome appearance. Disoriented by the unfamiliar era he finds himself in, Rai seeks out his loyal companion, Frankenstein. To fit in with human society, he dons the school uniform of Ye Ran High School, only to discover that the principal is none other than his devoted servant, Frankenstein. Having been in slumber for 820 years, Rai relies on Frankenstein to help him navigate the complexities of the modern world. Frankenstein enrolls him as a student to ease his transition into contemporary life. However, their plans are soon threatened by the challenges of everyday existence and lingering conflicts from both his and his master's past. Rai is compelled to use his mysterious powers to protect those around him.

In a world where magic dominates all, Mash Burnedead is a young man born without any magical ability, making him a perceived threat to the gene pool and a target for elimination. He hides deep in the forest, devoting himself to relentless physical training to build muscles capable of rivaling the power of magic. However, when his secret is exposed, endangering his peaceful life, Mash sets out on a journey to become a Divine Visionary, a position so influential that society would be forced to accept him. To protect his quiet existence, the magicless Mash enrolls in the prestigious Easton Magic Academy, where he competes against the children of the realm's most powerful and elite families. Despite lacking the essential skill needed to thrive at Easton—magic—Mash appears severely disadvantaged compared to his peers. To achieve his goal, he must overcome every obstacle using only his strength, overpowering magic with sheer muscle in his pursuit of the coveted rank of Divine Visionary.

During the Edo period of Japan, the arrival of alien invaders called the Amanto disrupts the country. Despite the samurai's determined resistance, the Shogun eventually recognizes the hopelessness of their fight and surrenders. The resulting peace treaty forbids the carrying of swords nationwide, weakening the traditional samurai way of life. In this changed world, Gintoki Sakata remains committed to his samurai principles, wielding only a wooden sword. With the demand for samurai declining, he makes a living by taking on various odd jobs around the city. Together with his self-proclaimed apprentice Shinpachi Shimura, the powerful alien girl Kagura, and their giant dog Sadaharu, Gintoki runs a service business called the Yorozuya, frequently getting caught up in a series of ridiculous and comical situations. Included one-shots: Volume 1: Dandelion Volume 2: Shirokuro (Black and White) Volume 24: 13 Volume 38: Bankara-san ga Tooru

Following the destruction of Yi "Shioon" Shi-Woon's ki-center at the hands of Goomoonryong, which leaves him unable to practice martial arts, Shioon decides to leave the Murim world behind and focus on a normal life at school while spending time with his mother. However, the Murim world does not let him go so easily. Recognized as Goomoonryong's only true disciple and granted the Phoenix Medallion of the Sunwoo Clan by Lady Sosul, Shioon becomes the clan's provisional leader, drawing constant attention. New enemies continue to challenge him, especially the Soldiers Under Command, who aim to remove him in order to further their own plans. The key question remains: how can Shioon defend himself without his ki-center?

In "The Eminence in Shadow," Cid Kagenou does not dream of becoming a celebrated hero or a dreaded villain; instead, his sole desire is to operate as the hidden hand that shapes destiny. In his past life in modern-day Japan, this dream never came to fruition. However, after being reincarnated into a world of magic, Cid sees his chance to fully realize the potential of a shadowy mastermind. Presenting himself as an unremarkable background character, Cid establishes his fabricated organization, Shadow Garden, supposedly dedicated to fighting a mysterious cult. Through a combination of cleverness and deception, he leads his imagined group against the real and dangerous Cult of Diablos.

After defeating Boo, Goku finds himself growing bored with his life on Earth. His wife, Chi-chi, insists he find a job, but all he desires is to train and face stronger opponents. Across the universe, the God of Destruction, Beerus, and his attendant Whis journey from planet to planet seeking food and amusement. After destroying some unfortunate beings, Beerus recalls a figure from his dreams known as the "Super Saiyan God," or something similar... The God of Destruction sets his sights on Earth to locate this enigmatic individual! Perhaps this will finally give Goku something to do?

At fourteen, delinquent Yusuke Urameshi spends his days skipping class and clashing with authority. He often gets into street fights with his rival, Kazuma Kuwabara, and teases his childhood friend, Keiko Yukimura. Struggling with inner turmoil and the burden of an alcoholic mother, Yusuke suddenly jumps in front of a speeding car to save a child, sacrificing his own life in the process. The spirit guide Botan intervenes, allowing Yusuke to see the impact of his death on those close to him, including his mother, Keiko, and even Kuwabara. Moved by their grief, Yusuke is given a second chance at life by Koenma, the son of the ruler of the Spirit World. Koenma recruits Yusuke as a "Spirit Detective," assigning him to resolve a series of escalating supernatural incidents. Through his battles and eventual alliances with demons like the refined Kurama and the fierce Hiei, Yusuke hones his fighting abilities. As dark forces rise from the Netherworld, Yusuke unites with his companions to protect what he once took for granted.

Shamans are individuals with a unique ability to communicate with ghosts, spirits, and gods that remain invisible to ordinary people. Every five hundred years, the Shaman Fight, a prestigious tournament where shamans from around the world compete, takes place. The winner is declared the Shaman King and gains control over the Great Spirit, allowing them to reshape the world as they wish. One evening, Manta Oyamada, an ordinary middle school student, cuts through a nearby graveyard to avoid being late for class. He encounters a lone boy sitting on a tombstone, who invites Manta to look at the stars with "them," revealing that "them" includes the boy's ghostly companions. Terrified, Manta runs away. Later, the boy introduces himself as You Asakura, a Shaman-in-training, and demonstrates his abilities by teaming up with Amidamaru, a six-hundred-year-old samurai spirit, to protect Manta from a group of bullies. You befriends Manta because of his ability to see spirits, and together with Amidamaru, they set out on You's mission to become the next Shaman King.

Negi Springfield, a ten-year-old wizard who recently graduated from Merdiana Magic Academy in Wales, has two primary objectives: locating his missing father, the legendary Thousand Master, and earning the title of Magister Magi, a wizard whose purpose is to aid the non-magical world. As his final assignment, he is sent to teach English at a Japanese middle school. Upon his arrival, Negi is surprised to discover that he is responsible for a homeroom class of thirty-one girls. One of his students, Asuna Kagurazaka, accidentally discovers his magical identity. With this secret now exposed, Negi must prevent it from spreading further while dealing with various magical threats emerging both inside and outside Mahora Academy, all while continuing his search for his father.

In "Lookism," 17-year-old Park Hyung Suk has spent his life at the bottom of the social ladder due to his short stature, weight, and unattractive appearance, enduring constant bullying and prejudice from his peers. To escape his tormentor Lee Tae Sung, he decides to transfer to Jae Won High School in Seoul, a vocational school known for its relaxed rules and laid-back student body. A few days before his transfer, Hyung Suk wakes up to find himself in a new body—tall, fit, and strikingly handsome, the complete opposite of his original form. Yet his old body remains beside him, with the two bodies switching consciousness whenever one falls asleep. Navigating this unusual situation, Hyung Suk enjoys his growing popularity at Jae Won High while also investigating the mystery behind his extraordinary second body.

In "Shijou Saikyou no Deshi Kenichi," Kenichi Shirahama, a gentle but often bullied 15-year-old, joins his school's karate club with the aim of becoming stronger. However, he quickly becomes a punching bag for the seniors. His life takes a turn when Miu Fuuriniji, a stunning new student and skilled martial artist, introduces him to the Ryozanpaku dojo. There, Kenichi meets six unusual masters who immediately take him under their wing. The series chronicles Kenichi's journey as the world's strongest disciple, training relentlessly under these exceptional martial arts masters, each with their distinct fighting style. His goal is to gain the strength necessary to protect what is important to him.