Акідзукі Кай

He has a cheerful personality and gives his all in everything he does.

He has been with Mike Enjouji since kindergarten and is treated like a younger brother figure at the academy. A beloved character who often gets good-naturedly teased by his classmates, he is just as popular with others as Chiguma Marume. He used to belong to the basketball club, but was more or less forced to switch clubs after Mike began participating in the archaeology club as well.

His favorite food is curry rice; he is actually more passionate about cooking it than eating it, going so far as to purchase his own spices.