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...
You don't want more
vampiric incident victims, do you?
لا تريد أن يزيد عدد ضحايا
حوادث مص الدماء، أليس كذلك؟
Du willst doch auch nicht, dass es
zu weiteren Opfern kommt, oder?
Y no quieres que haya 
más víctimas, ¿no?
Y no quieres que haya
más víctimas, ¿verdad?
Tu n’as pas envie de le laisser
faire plus de victimes, si ?
E poi non vuoi far aumentare 
le vittime dei casi di vampirismo, no?
Você não quer mais
vítimas vampíricas, não é?
Ты ведь не хочешь, 
чтобы те случаи продолжались?