Manga Like Kaiun Colosseum

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 "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.

At Suzaku High, Ryuu Yamada is known as a troublemaker and delinquent. After getting a harsh scolding for his bad grades and behavior, he notices Urara Shiraishi, the top student in their year. As Shiraishi walks up the stairs, Yamada tries to provoke her but ends up tripping and pulling her down with him. When he wakes up in the infirmary, Yamada realizes he has swapped bodies with Shiraishi. Confronting her, he learns that their accidental kiss caused the swap. With this newfound power, Yamada's chaotic high school life is only beginning.

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 the series "Kami nomi zo Shiru Sekai," high school student Keima Katsuragi is known online as the "God of Conquest" for his unmatched success in dating simulation games. He finds real-life interactions with actual girls frustrating and inferior to his virtual experiences. One day during his break from cleaning duties, Keima encounters a peculiar challenge to win over a real girl. Curious, he accepts the offer, which unexpectedly summons Elucia "Elsie" de Lute Ima, a demon sent from hell to reclaim rogue spirits that have attached themselves to human females. Keima tries to escape, but Elsie tells him that breaking their newly established contract would result in his death. With no choice, Keima uses his gaming skills and knowledge of dating simulations to navigate the complex world of real relationships and capture the rogue spirits.

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 the anime "Kamisama Kiss," high school student Nanami Momozono faces a string of hardships after her father runs off due to overwhelming gambling debts, resulting in her eviction by debt collectors. While pondering her bleak future, she encounters a man who has climbed a tree to escape a dog. After helping him, Nanami shares her troubles, and he offers her his residence, insisting she would make a better "Master" of the property than he. Accepting his proposal, she moves into what turns out to be a dilapidated shrine. Upon arriving, Nanami is stopped by a fox familiar named Tomoe and two shrine spirits, who initially mistake her for their previous master, Mikage, the shrine's land god. Once the misunderstanding is cleared, Tomoe leaves, refusing to serve Nanami. However, after a series of events that place Nanami in grave danger, she compels Tomoe to sign a contract, binding him to her service. As the new human land god, Nanami must now navigate her new responsibilities, face formidable foes, and deal with her enigmatic and fiery familiar.

Following the death of his parents, high school student Kimihiro Watanuki lives alone and possesses a unique ability to perceive supernatural beings that constantly target him. These spirits relentlessly torment him, and he longs to escape their influence. While fleeing from a group of these entities, he takes refuge in a peculiar shop where he meets Yuuko Ichihara, the shop's mysterious owner, who claims she can grant any wish at a cost. Kimihiro agrees to work for Yuuko to accumulate the payment needed for his wish. Guided by her, he must venture deeper into the world of spirits and the mystical to ultimately break free. Will he be able to navigate the strange and enigmatic experiences that await him?

In "Sankarea: Undying Love," Chihiro Furuya has an unusual fascination with the dead, especially female zombies. After his beloved cat Baabu dies accidentally, his obsession grows, and he begins experimenting with a potion meant to bring the dead back to life. Despite repeated failures, Chihiro nearly gives up on his goal to resurrect Baabu. Just before he abandons the effort, Chihiro meets Rea Sanka, a beautiful but deeply troubled girl, who inspires him to keep trying. By adding toxic hydrangea petals to his potion, Chihiro finally creates the elixir he has been seeking. Unbeknownst to him, Rea drinks the concoction, believing its poison will end her life. After a fatal accident, Rea dies, but the elixir works, bringing her back as a zombie. Freed from her oppressive past, Rea chooses to live with Chihiro, who now must use his knowledge of the undead to care for the teenage zombie girl.

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.

Several months after the events of the first season, Youkai Academy has been rebuilt and a new semester begins. Tsukune and his companions return, having grown stronger. The true nature of Anti-Thesis is revealed, along with new enemies and a threat far more dangerous than anything they have faced before. Tsukune struggles with the monster awakening inside him. With guidance from Moka, Mizore, Kurumu, Ruby, and Yukari, he trains to control his vampire heritage and gain the power needed to protect those close to him. The second season explores more of the girls' backgrounds and their family connections. New trials await, along with new allies who will join their side. Together, they seek to uncover the secrets behind Moka's rosary and her bloodline.

In "Monogatari Series: First Season," scars weave connections, monsters haunt, and deceptions abound. Koyomi Araragi's journey unfolds after a fateful encounter with an exceptionally powerful, blonde vampire known as "hot-blooded, iron-blooded, and cold-blooded," eventually identified as Shinobu Oshino. This tragic event leads to Araragi's transformation into a vampire himself. However, this encounter is just the beginning of his involvement with the supernatural. Driven by his noble nature, he becomes entangled in the lives of others plagued by paranormal occurrences. This is his relentless fight to restore a semblance of normalcy in a world overrun by sorrow, pain, and the inhuman.

In *Hinamatsuri*, yakuza enforcer Yoshifumi Nitta's life is turned upside down when a strange capsule crashes into his head. He first thinks it's a dream, but soon discovers it's real, and out of it emerges a young girl named Hina, who only remembers her own name. Using her psychokinetic powers, Hina forces Yoshifumi to buy her clothes and toys, leaving him with no choice but to become her caretaker. As their unusual relationship develops, Hina's supernatural abilities inadvertently help Yoshifumi climb the ranks of the yakuza. The series follows the comedic adventures of this duo, including Hina's mischief and the involvement of new friends and old acquaintances. Meanwhile, Yoshifumi struggles with the challenges of raising Hina, keeping her powers secret, and managing his duties in the yakuza world.

Asahi Kuromine is famous for being completely incapable of lying. One day, on his way back home, he accidentally discovers a shocking truth: his love interest, Youko Shiragami, is actually a vampire. Can Asahi manage to protect her secret? This is a funny, awkward, and truly unique vampire romantic comedy.

In To Love Ru: Darkness, Rito Yuuki continues to struggle with his feelings for both his crush Haruna Sairenji and the alien princess Lala Satalin Deviluke. Lala's younger sister, Momo, develops a crush on Rito as well and decides to form a harem around him, hoping to secure her own position in his affections. Momo enrolls at Rito’s school and covertly assists his various potential love interests, even recruiting new candidates, including the newly arrived alien assassin known as Konjiki no Yami, or "Yami." Yami delays her next assignment due to Rito. However, Yami’s sister, Kurosaki Mea, intends to compel Yami to resume her duties as an assassin. To Love Ru: Darkness unfolds following the conclusion of To Love Ru, bringing in new female characters, new foes, and increasingly risqué scenarios.

Futaba Okeya is a 14-year-old boy who can see ghosts and always keeps a prominent birthmark on his left cheek hidden under a bandage. One day, a new student named Kouko Ishigami joins his class, marked by a scar on her forehead and followed by the spirit of a tall, friendly man. Futaba feels an instant attraction to Kouko, thinking it might be love at first sight. After a disturbing dream about her, he wakes up crying and senses a deep familiarity, which drives him to try to befriend her. However, a series of events leads Futaba to reveal his birthmark to Kouko, causing her to declare him her eternal enemy. Enraged, Kouko explains that they are connected through reincarnation, and the birthmark is a curse she placed on him in a past life to identify and ultimately defeat him. Kouko then summons a flaming circular device called the "spirit circle" and attacks Futaba, sending him tumbling down a staircase into the memories of one of his former lives. The story of Spirit Circle follows Futaba as he journeys through his various past lives, gradually uncovering the truth behind his conflict with Kouko.

Young Hikaru Shindou stumbles upon an old go board in his grandfather's attic, and through it, the spirit of Fujiwara no Sai, a legendary go master from the Heian era, is summoned. Though Hikaru has no interest in board games at first, Sai pushes him to learn the intricacies of go and execute strategic moves under his guidance. Despite his initial reluctance, Hikaru starts to develop a fondness for the game as he gets more involved. Guided by Sai's spectral knowledge and fueled by the competitive drive from his rival Akira Touya, Hikaru delves deeper into the challenging world of go. Over time, his growing passion and skill in the game lead him to seek recognition through his own abilities.

In Bakemonogatari, Koyomi Araragi is no stranger to the supernatural. During his third year of high school spring break, he unexpectedly becomes a vampire after an encounter with Kiss-Shot Acerola-Orion Heart-Under-Blade. Submerged in a realm of anomalies, Araragi finds himself aiding classmate Hitomi Senjougahara when he notices something peculiar after catching her falling down the school stairs. He learns that a mythical crab has been stealing her weight. Though she warns him off with harsh words, Araragi manages to convince her to accept his help. To address this bizarre problem, they seek out Meme Oshino, the mysterious wanderer who previously helped Araragi overcome his vampiric condition. This narrative explores the hidden monsters within each individual, raising questions about how deeply they are concealed within those Araragi meets.

Yuugi Mutou, a high school student frequently targeted by bullies, spends his nights absorbed in board games and puzzles within his room. His love for games stems from his grandfather, who runs the game shop where they both live. After solving the ancient Millennium Puzzle one night, Yuugi awakens a concealed, darker identity called Yami Yuugi. In moments of intense stress, Yuugi transforms into this bold and fearsome alter ego, assuming the role of a vengeful figure who challenges bullies and wrongdoers to high-stakes games, where losing brings severe repercussions. As Yuugi and his dark counterpart gain allies among those who once tormented him, they forge strong bonds with these new companions. However, the group soon faces enemies far more dangerous than school bullies—people who twist games for evil purposes, putting Yuugi and his friends' lives at risk.

Once the second most powerful figure in the Demon Realm and the Demon King's trusted assistant, Jahy commanded fear among her subjects. However, a magical girl's attack shatters a mystic gem that held immense energy, resulting in the Demon Realm's complete destruction. Though Jahy survives, she loses nearly all her abilities and ends up in the human world, now appearing as a small child. To reclaim her original form and rebuild the Demon Realm, she must gather more mystic gems. This forces her to adapt to an unfamiliar lifestyle, facing mundane challenges she never encountered before—earning money for rent, bickering with her landlord over late payments, and more. Yet the great Jahy refuses to be daunted!

In the world of Shugo Chara!, children's hopes and dreams create a "Heart's Egg," an unseen representation of their ideal self that lies dormant within them. Amu Hinamori, a student starting at a new school, finds herself burdened with an undeserved image as cool and fiery. Longing to reveal her true self, Amu discovers three eggs one morning, which hatch into her Guardian Characters: Ran, Miki, and Suu. These characters embody different aspects of Amu's desired personality. The series follows Amu's journey as she unlocks her hidden potential through interactions with her Guardian Characters, meets other Guardian Characters, and faces various challenges.