Ogishiro

"Hey, Seraphina. Even when you grow up, don't end up killing me, okay?" The wizard Arvel meets his end at the hands of his former fiancée, Seraphina, who later became the emperor's mistress and a notorious villainess. However, when he comes to, he finds himself face-to-face with a young Seraphina! Astonishingly, he has returned to being his 13-year-old self. Seeing Seraphina before she became a villainess, Arvel makes a resolution: he will raise her to become a proper person and save his own life. To start, he begins searching for a way to prevent the death of his brother, Sho, who was once engaged to Seraphina. However, the situation is far from simple, as he must contend with Seraphina's neglectful family, men vying for the beautiful Seraphina's attention, and a web of conflicting intentions. In this journey through time, can Arvel alter Seraphina's fate and save her from becoming a villainess...!?

Matsuoka Renna, who has just transferred to Fuyou Girl's Academy, is reunited with Mayuzumi Kyouko, a friend from her elementary school days. Known as "Black Rose-sama" and the object of admiration among the students, Kyouko says that she had been worried about Renna ever since she moved out of town due to a certain incident. However... there is something bothering Renna...? In the midst of all that, it is announced that Black Rose is dead. As Renna is stunned by this news, she receives an invitation to a suicide matching website known as "Black Black Lotus"...