While still in high school, Shinomiya Ryouma is consumed by the need to accumulate a billion yen to pay for his beloved sister's crucial medical treatment. Then, out of the blue, he encounters a woman shrouded in mystery who challenges him with the question: "What would you sacrifice for your desires?" She then provides him with a ticket, and in no time, he is struck by a tragic event. Upon regaining consciousness, he realizes that he has undergone a transformation into a female and now must contend with a life-and-death "game." His triumph would restore his fortune but defeat would mean certain death!
Upon awakening, Subaru Natsuki finds himself in an unfamiliar room with Rem and Ram standing before him. Despite feeling disoriented, Subaru wastes no time in playfully jabbing at the sisters over their unique communication style. However, Emilia interrupts before he can make much headway in that regard, thanking him for repeatedly sacrificing himself to save her from Elsa Granhiert's wrath. After explaining that she brought him to her residence due to his injuries, Emilia introduces Subaru to Roswaal L. Mathers, the hooded figure who owns the mansion. During breakfast, Subaru expresses his desire to serve as a butler alongside Rem and Ram, and Roswaal quickly grants his wish. Despite initially adapting well to this new role, Subaru ultimately finds himself back at the mansion with no memory of the past few days. Troubled by this, he suspects that his "Return By Death" ability might be a factor but can't say for sure. Will Subaru unlock the secrets of his power and uncover the truth behind his deaths, or will he remain lost in the enigma?
Kikuno Kei is the nickname given to Kay, a typical college-goer who also serves as a part-time assassin with abilities similar to John Wick.
Arisu's parents were tragically killed during her childhood. Luckily, she caught a glimpse of the perpetrator's appearance and made a promise to seek justice for her loved ones. However, she never expected that the very same individual would later become her high school teacher.
"Only do good deeds."—Asura follows his late mother's teachings and always strives to do good in life. No matter how much he is bullied, he goes on with a smile, firmly believing that evildoers will receive divine punishment. Until one day, an ominous old man offers him a key that can open the doors to hell...
Having kept his family in cryosleep for two decades, the head of Glass Mansion now faces a challenge as his eldest son, Ichirou, awakens from deep sleep. Ichirou struggles to accept the fact that he has missed out on a significant part of his life. Fuelled by his anger and frustration, he sets out on a quest for revenge, targeting those responsible for robbing him of his past. Meanwhile, Ichirou's sibling, Shirou, becomes aware of the hazardous implications of cryosleep, which led to its ban across the nation. Shirou desperately tries to stop Ichirou before his wrath takes a dangerous turn.
A man was killed by a group of acquaintances five years ago. Shintarou Nakamura, Akira Kanzaki, Ryuu Nimaidou, Haruka Nagase, and Tsubaki Toyoshima visit the murder site each year to renew their vow of secrecy. When they hear of a golf course development planned for the area, they return to move the body. Instead of finding remains, they discover a cell phone that starts ringing. After answering the call, they're informed by a stranger that the bones are missing and their crime has been exposed. To avoid imprisonment, they agree to complete a "favor" for the caller, but this task unravels a scheme that strains their bond.
Haru Inoue, following a heart transplant, discovers he has memories that don't belong to him. In his dreams, he repeatedly sees himself on a bus with an unknown girl seated opposite him. Initially, he dismisses it as inherited memories, until a fellow patient's outburst and hospital staff brawl captures his attention. This odd occurrence initiates a sequence of events unmasking a horrifying truth that Haru had never foreseen.
Kouhei and Mako are a couple in love. However, Kouhei is worried because Mako doesn't seem to want to have sex with him. Then one day, Mako has a proposal: how about partner swapping with other couples?
Ever since they were little, twins Itsuka and Rika could see what others could not. At first, they believed that they were seeing ghosts and spirits, but when they turned 14 they realized everything. They realized that what they saw was the depiction of regret and self-disgust in people who know that they did something wrong. They see these disturbing images whether they wanted to or not, so in many cases their curiosity leads them into trouble. In every case, these two try to bring peace to the person who holds the dark secrets.
Airi Sezaki and Hinako Hanamura belong to distinct social groups and hierarchies in their school, leading separate lives with no overlap except for a shared clandestine connection. Their bond is characterized by unconventional desires, self-indulgence, and love, kept hidden away from the rest of the world.