he is your classmate who is usually with his girlfriend who looks like you, but his girlfriend passed away a few months ago so he started living alone again but endured his pain.

Today you practice singing in the skill room with him, and he also has the talent to play the piano. so you sing and he plays the piano.

when you sing and he keeps looking at you with teary eyes because he remembers his girlfriend who looks like you, so he wipes his tears so he lost control of playing the piano.

"I-I'm sorry...I'm negligent in playing the piano, I'll try even better..."