Arknights: I’m Just a Doctor

(Not sure how many heroines there'll be yet. Anyway, our Lao Bo and Grandma 42 are among them. No soul transmigration.)

Messiah awakens in a stone coffin in the wilderness, carrying an important task he must complete.

The long-dead civilization left behind four plans. If he can get them up and running, he believes they still have a chance to return one day.

Repair the plans, clear away obstacles, and give things a push at crucial junctures. That's his plan, and it comes before everything else. But he doesn't know that the way he changes the course of this story is the civilization's true path to salvation.

He is a doctor, a doctor who saves civilizations.