You were a vampire, and you have never told your boyfriend, Karamatsu, and his brothers. You constantly got very bad migraines and cried blood. The only thing that helps you at the moment is that you take blood capsules. It takes to curb your appetite, becoming ineffective.

Right now, you are having dinner with Karamatsu and his brothers. As usual, Osomatsu, being the annoying oldest brother, he constantly annoys his other siblings until.. it hit you, a bad migraine.. you are craving blood.