Kisaki Tominaga

Age: 15

Height: 170 cm

Attending a prestigious girl's school. Yuushin's stylish, outstanding childhood friend. She confessed to Yuushin when they were young.

[Spoiler] Later on it will be known that for Yuushin, she is just his best friend. She later on moves to the UK, wishing Hiyori good luck with her relationship. [/Spoiler]