In town, blood-sucking incidents are growing frequent. As Kitaro investigates, he receives a letter. The sender wants to be killed. Kitaro goes to visit the sender and meets Onozaki, a genetics researcher. Onozaki has created immortal cells and conducted an experiment where he injected himself with them. As a result, he has obtained an immortal body and also turned into a youkai. When he transformed into a youkai, he lost control and went seeking blood. All the recent blood-sucking incidents were Onozaki's doing. Because of the immortal cells, Onozaki can't kill himself, so he begs Kitaro to kill him, but...
Onozaki-san, get ahold of yourself!
!افتح عينيك يا أونوزاكي-سان
Onozaki, bitte wachen Sie auf!
Onosaki-san, despierta.
Onosaki-san, despierta.
Signor Onozaki, apra gli occhi, per favore!
Sr. Onozaki, abra os olhos!