Grandfather Kumagaya

He is Kento's grandfather. Together with his wife, he raised Kento after their son and his wife passed away in a car accident. Unlike his wife, he is quick to anger and set in his rules, but cares deeply about Kento even though he doesn't always show it. No voice actors have been added to this character. Help improve our database by searching for a voice actor, and adding this character to their roles .