They are in the music show, but I am a stranger to them

Chen Qi, who came to the Japanese anime music series, thought that he would be the protagonist and that he could change all the established tragedies, so by chance, he became the lyricist and composer of Crychic.
But in the end, even though he tried his best and thought he had done everything he could, he still couldn't prevent the band from disbanding. In fact, because of his participation and "efforts", everything became more and more serious, and even many contradictions and conflicts appeared that were not in the original work.
From the day the band disbanded, Chen Qi suddenly realized that he might not be that special in their hearts. His forceful intervention might only bring more misfortunes and even destroy the girls' original lives and interpersonal relationships.
Perhaps I shouldn't have any contact with them. I should just be a stranger to them.
Ah, but...if I were given another chance, I would really like to tell you that I also want to be free of desires and burdens and get along with you all sincerely again.
Xiangzi: "In that case, then come back soon! Didn't you say you wanted to form a professional band? I'm here to pick you up with my professional band!"
Hong Xia: "Aqi, can you agree to one of my requests? Form a lifelong band with us!"