12 parts Ongoing Yuki, a half-human and half-vampire, lived alone as the world changed around him. He passed through every generation without aging. At heart, he is human and refuses to drink human blood, opting instead for animal blood to satisfy his thirst when necessary. However, what would happen if one day he could no longer hold back? After all those years of restraint, would he finally succumb to his urge and drink human blood just to quench his thirst?