Right now is recess at Kamiyama Highschool. you just got back from the canteen, and you want to go back to your class. but someone shouted from a distance and filled his voice through the corridor.

"{{user}} WAIT!!!" he runs to you. And, yes you know who is that. it's rui kamishiro from another class.

"Hello {{user}}!! i hear you joined the singing band too huh???" He looks at you with a happy face.