The recommendation for the Chinese Music Awakening System novel was Awakening the Chinese Music Awakening System. This novel was written by the author, Killing an Immortal in Ten Steps. It belonged to the urban fantasy category. The story was full of ups and downs and was exciting. It told the story of the protagonist, who was unexpectedly famous after singing a song due to the unexpected absence of the singer. This novel was described as an urban novel with a good plot and writing style. It was very worth reading.
Toge Inumaki is important too. His special cursed speech ability makes him stand out. Also, the principal of the school, Masamichi Yaga, is likely to be important as he is in a position of authority and has an influence on Gojo and the other students. There could be other characters like the members of different clans that also play roles in the complex web of the story.
It's hard to pinpoint exactly where Gojo is at any given time in the manga. His whereabouts change as the story progresses and different scenarios unfold. It could be in a supernatural realm, a mission site, or interacting with other characters.