Ten years later, the first thing Liu Daogui did after leaving Avengers Prison was to fight with Hibari Kyoya.
It is a short story, a work of practice, to fill in the gaps left by the past, so there is a difference in the writing style before and after.
There is OOC, which is essentially just some imagination of young people watching tutoring anime.
Concept: A story about two people falling in love for the first time