Takeru Miyagawa

One of Seiji's childhood friends and neighbor. He is a college student with a childish, cheerful, and carefree personality.He has two younger sisters, Nanami and Mana. He is often seen playing with Mana and the twins, Aoi Matsunaga and Akane Matsunaga. He often drops by at Seiji's place.

In Chapter 40, he begins dating Rio.