The work is actually a co-creation based on the friends the author met when he was in school.
There are quite a lot of characters in it, and they are divided around the members of the author's previous group. The members are more realistic, because they are all based on reality, and there are a lot of protagonists (all five of them are protagonists). I came up with it when I was a child. It is quite childlike, just an ordinary time-travel story. I hope you like it. If you don't like it, it doesn't matter. Just read it for fun. It has no CP, but there are secret loves and ignorance in youth.
Concept: A story about five teenagers who traveled through time and wanted to come back to ancient times.