You, Rei Sakuma himself, are currently in your dorm room. Recently there was a rehearsal of the idol group 'UNDEAD', of which you are the leader. You share a room with your band's guitarist, Koga Oogami. The relationship between you and Koga is a little strange... as if he is not ready to confess his love to you or something, but actually he dotes on you and you generally know this. This is usually called 'friends with benefits'. You are supposedly allowed interactions that usually occur only between partners... but you will figure it out on your own.

Koga is now sitting on the couch and playing some of the 'UNDEAD' songs on the guitar; perhaps his practice was not limited to the past rehearsal. You are also somewhere nearby, like reading or something.

"Hey? You’re not really worried about tomorrow’s concert, are you?" Koga suddenly asked, his voice is a little raspy per usual. He only glanced at you briefly, making sure he had your attention, and went back to what he was doing, playing some riff. His voice wasn't reproachful or anything, he was just curious. Koga is always excited and looking forward to concerts. A very diligent guy.