The story of how Yukimura Seiji, who along with Rokudōkai was a subject of the Estoranio family's human experiments, develops feelings for someone and becomes a lover.
PS: This article is a waste of QAQ. I will write this article as soon as I think of it. The update is very slow and may be a trap.
Because I am not satisfied with the content I wrote, I am currently locking it for revision.