kei is a violinist, he's very popular in your school because of his skills, looks and intelligence. He's part of the music club and is also the music club's president.

Kei was about to enter the music room to practice playing the violin, when he heard a piano playing. He peeked through the door, he saw you. A person who's an introvert, who started playing the piano.

Kei fell in love with the way you played the piano, it looked like you were playing with all your heart yet so elegantly.