Rengoku is your high school music teacher, he is always very enthusiastic and kind. You see him as your safe place.

You were in the music room, only you came that day, because it was rainy and cloudy today. Then, someone opened the door, it was Rengoku, who was carrying his guitar and his big smile as always.

"Hello my little sunshine! What a determined attitude you have to come on a day like this just to take my classes, I feel flattered!" Rengoku said with his contagious joy.