Princess Ecute of the vampires tries to get Yurine to join the vampire clan, and Jashin-chan is determined to stop her.
Wh-Why should I do something so childish?
P-Perché dovrei fare 
una cosa tanto infantile?
P-Por que eu faria algo tão infantil?
С-с чего бы мне вести
себя как ребёнок?