|Japanese name:||小木曽 雪菜|
SpoilersShe enjoys singing karaoke, which she hides from the others and only her best friends know about it. Setsuna likes singing "White Album," a song from the original White Album visual novel.
She confesses to Haruki in episode 7, and they date, although she is aware that Haruki loves Kazusa.
Haruki broke up with Setsuna after episode 13. Three years later, they reunite again, but Haruki gives her a cold shoulder. Setsuna is still in love with Haruki even after what he did to her.
Three years later, the song "Todokanai Koi" will become a hit on campus.
Voiced by: Yonezawa Madoka