Yukawa Ryou

Chouji's and Eika's cousin who is currently living with them. She's a very superstitious person. Ryou is also recognized as a school idol like Chouji as she's not only beautiful but also possesses the strength to eliminate most of the delinquents around the school. Thus, other students believe that Ryou and Tane have a rivalry kind of relationship between them (as in honor student versus a delinquent). Other than that, she's Chouji's classmate and a vice president of the Student Council at their school.

Some time ago during their childhoods, she was engaged to be married to Chouji by her grandfather.