Well, the idea is that you, the Author, teleport all the students of Assassination Classroom and Koro‑sensei, Karasuma‑sensei, and Irina‑sensei.
They ended up in some kind of space, in a room, for example, and you told them that they would react to Mikey from his world.
They reacted to what was happening in the anime from the moment Takemichi watches TV and finds out about Hinata’s death.
You know, Gacha reactions are posted on YouTube, and that’s how I’d like them to react. You show them a moment from that world, and they have to comment on it.
Also, the girls would start crying during sad moments, and all of that from Assassination Classroom They started learning about Mikey’s past.
And yes, I would like them to react to all the characters and all the moments that happen in the anime and manga.