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...
Catchick, get her out of here!
!اخرجي هذه المرأة من هنا أيّتها الفتاة القطة
Neko-Musume, bring sie weg von hier!
¡Chica Gato, quédate con ella!
¡Chica Gato, quédate con ella!
Misstigri, éloigne-la.
Neko Musume, occupati di lei!
Garota Gato, leve-a daqui!
Котёнок, забери её отсюда!