Young Thunder's Fantasy Journey

This article is also called "Young Calamity Becomes a Boss in an Infinite World" [Young protagonist, no heroine, strong protagonist] Lei Ming saw her sister squatting in the dungeon with her, picked up a camera, pointed it at herself, and started talking. Hello everyone, I am Yumi, a contractor, which is the kind of contractor who signs a certain contract with a certain high-level existence and then adventures in various worlds. My strength is pretty good, I rank in the top 50 in the same level of arena, and my usual world clearance rating is above A. Although there is no way to single-handedly defeat the overlord-level boss of a world, killing elite monsters is like cutting melons and vegetables. But I didn't expect that this mission in the dark world gave me a blow. Even if I was in jail at the beginning, the guard at the door of the prison was actually the inseparable opponent I killed in the arena. But that's not important. What's important is that she was instantly killed by the plot character kid who was in jail with me? My shota inmate is actually a natural disaster level boss? But fortunately, this kid and I have the same identity in the dark world. Anyway, when I leave here, I will go hunting for treasures, and I will not do this stupid task.