『Yuki Suou』

Birthday: March 12

Blood type: O

Height: 150 cm

A first-year who serves as the student council public relations. She is the eldest daughter of the Suou house, whose origin was a former noble family and has shouldered the role of a diplomat for generations, becoming the heir after Masachika and his mother left the family. She is a genuine and straightforward girl, and enjoys teasing both Masachika and especially Alya. At first, Alya is jealous of her because Yuki and Masachika are childhood friends, but it is later revealed that Yuki is Masachika's younger sister.