Yuki Takao

With graduation 10 days away, homeroom teacher Hiiragi gathered all 29 students of class 3-A and proclaims them his hostages. His last lesson regards the death of a student that passed away a few months before. Nobody will be able to graduate until the truth is known.

Ryū Yamada is known as a delinquent in his high school; he has been bored of classes after one year of attending school. One day, he accidentally falls from a flight of stairs onto Urara Shiraishi, the ace student of the school. Yamada wakes up to find that he has swapped bodies with her. The two try to reverse the change and discover that kissing triggers the body swap. On the suggestion of student council vice-president Toranosuke Miyamura, they revive the Supernatural Studies Club. The supernatural phenomenon-obsessed Miyabi Itō soon joins the club. The club encounters other "witches" with different powers that are activated with a kiss. A transfer student, Kentarō Tsubaki, becomes a part of the club after nearly causing a fire to the old schoolhouse. Upon discovering the identity of the seventh witch, Yamada supposedly has his memories of the witches erased, but it instead affects the witches and the students involved. While the student council tries to impede his progress, Yamada restores the memories of the witches with a kiss, and gathers the seven witches for a ceremony where he wishes for the powers to go away. He confesses his love to Urara and they become a couple. He is recruited to the new student council where he learns that he still has his witch copying power, that the witch powers have been allocated to other girls in the school, and there are multiple groups of witches. Although the student council tries to shield each other from the powers, they find themselves facing opposition from students controlled by the Japanese Chess Club, which has male students with new types of witch powers.

Alka is an assassin for the Clan of the Sword. She's on a journey to find the woman Jin Valel, who killed her master Hon. Jin is demon-like woman who controls the Energy of Chaos and kills without feeling - not unlike how Alka has learned to kill in her work as an assassin. On her journey, Alka encounters three strange women, each great warriors in their own right, and grapples with her slain master's wish that she leave the life of an assassin behind.