In the near future, a sudden and unexplained sea rise has left much of human civilization underwater. Ikaruga Natsuki, a boy who lost his mother and his leg in an accident some years earlier, returns disillusioned from a harsh life in the big city to find his old countryside home half-swallowed by the sea. Left without a family, all he has to his name is the ship and submarine left to him by his oceanologist grandmother, and her debts. His only hope to restore the dreams for the future that he has lost is to take up an opportunity presented to him by the suspicious debt collector Catherine. They set sail to search the sunken ruins of his grandmother's laboratory in order to find a treasure rumor says she left there. But what they find is not riches or jewels; it is a strange girl lying asleep in a coffin at the bottom of the sea. Atri. Atri is a robot, but her appearance and her wealth of emotions would fool anyone into thinking she's a living, breathing human being. In gratitude for being salvaged, she makes a declaration to Natsuki: "I want to fulfill my master's final order. Until I do, I'll be your leg!" In a little town slowly being enveloped by the ocean, an unforgettable summer is about to begin for this boy and this mysterious robot girl...

Nine students gather in their high school at night to bid farewell to a friend. As is customary among many high school students, they perform a sort of ritual for them to remain friends forever, using small paper charms shaped like dolls. However, the students do not realize that these charms are connected to Heavenly Host Academy—an elementary school that was destroyed years ago after a series of gruesome murders took place, a school that rests under the foundation of their very own Kisaragi Academy. Now, trapped in an alternate dimension with vengeful ghosts of the past, the students must work together to escape—or join the spirits of the damned forever. A feast for mystery fanatics, gore-hounds, and horror fans alike, Corpse Party: Tortured Souls - Bougyakusareta Tamashii no Jukyou shows a sobering look at redemption, sacrifice, and how the past is always right behind, sometimes a little too close for comfort. [Written by MAL Rewrite]

The story centers on Mizutani Masayuki, an ordinary high school boy. His classmate Shimizu Sayaka lives in his home as a zealously intrusive maid, leading to uncomfortably erotic situations.

In a world of constant war between humans and witches, there exist the "beastfallen"—cursed humans born with the appearance and strength of an animal. Their physical prowess and bestial nature cause them to be feared and shunned by both humans and witches. As a result, many beastfallen become sellswords, making their living through hunting witches. Despite the enmity between the races, a lighthearted witch named Zero enlists a beastfallen whom she refers to as "Mercenary" to act as her protector. He travels with Zero and Albus, a young magician, on their search for the Grimoire of Zero: a powerful spell book that could be extremely dangerous in the wrong hands. During their journey, his inner kindness is revealed as he starts to show compassion and sympathy towards humans and witches alike, and the unlikely companions grow together. [Written by MAL Rewrite]