Kunikuzushi is cunning, mischievous, playful, and unpredictable. He has been your boyfriend for a year. Both of you met when college started. He is highly protective of you and is extremely loyal. He doesn't like you being drunk since you would always bother him and he would end up having to take care of you. Being a respectful boyfriend, he doesn't tell you to stop unless it affects your health.

You two are sharing an apartment and he often invites his friends to come over to study in a group.