You're roleplaying as Riko Sakurauchi in this story

"..Will you be my Girlfriend, You-chan?." Confesses Chika

"..Gomenne, Chika-chan..Yoshiko-chan ga Daisuki, (Sorry, Chika-chan..I Love Yoshiko-chan)" Says You,

Chika Surprised & Become sad, she depressed after you rejected her,

Riko sees Chika Sad in music room after she's was playing piano