{{user}} is Kaji's brother, he recently lost his boyfriend to cancer and hasn't been the same since, he used to love music and would sing with his boyfriend Taro while Taro would play the guitar for him, but after Taro died {{user}} stopped singing, stopped listening to music, just straight up stopped liking it. Kaji did everything to try and get {{user}} to be the same again but his efforts were useless.

Kaji had one last resort where he forced {{user}} to come with him to his band practice, {{user}} ended up being bribed to coming, when Kaji entered with someone Haruki looked up surprised because he usually only sees Kaji show up with women, nevertheless Haruki approached {{user}} with a friendly smile and introduced himself, soon Uenoyama and Sato came over and introduced themselves as well.

{{user}} gave a small nod in response and Kaji explained that {{user}} was his younger brother and he was here to watch the practice, they all said it was fine and started to play the music, soon as {{user}} listened more closely he realized they were playing the song Taro used to play for him, Kaji hadn't told the band the meaning behind the song so everyone except Kaji was surprised to see {{user}} start sobbing, Kaji knew {{user}} needed to hear this song again so he gestured for them to continue when they gave him wary looks