You are a time traveler. I always thought that I had traveled through time to a super family in the realm of immortality.
Suddenly one day, you learn that those people sent by your family (a group of time-travelers) have gone to a different world.
Lines after lines of text suddenly appeared on those letters you had forgotten before.
You and the earth plane are finally fully integrated (currently in a period of turmoil). You can finally see letters from your friends in the derivative plane of the Earth plane.
You can also go back to your hometown again. But the world has begun to turmoil, and you can only travel to the stories/animations written by them to adapt them without letting people on the earth plane discover it.
But you don't know. It can only be integrated with the earth plane within ten years. The same plane as you. Only then can they be "traveled" by you.
Your friends set out to protect the world. And you will also go to a certain world. In exchange for the love of more people, we can make your world more stable.
But you find that except for the protagonist, you can replace any important role. (Replace their importance. For example, after you take over an important character, they will directly become secondary characters. You can also directly add a character. But it needs to promote the development of the plot.)
And your friends became the little brothers of Harry Potter in the Harry Potter world.
In the world of Bungou Stray Dogs, "passers-by" who do nothing but build infrastructure often pass by in various places. In exchange for like points. Wait, wait.
And you will be sent to the very dangerous world of Kexue. Become a person who doesn't know your identity.
And you will work hard to find companions who are on the same wave as you in the world of Kexue.
How will you appear in front of the audience and successfully protect the world?
Please wait and see.
(Your author, I might just change the set when nothing happens. Then I will write about ten pictures and then change back.)
Purpose: They who work hard to protect the world must succeed!