Looking for that one oneshot (now serialized) manga about a princess that gets turned into a slave, and is forced to fight in battle royale matches in different worlds. In one of them she meets a kid that helps her survive, by replacing her legs that get blown up with prosthetic ones. The girl is dumb, and relies on the androgynous kid’s help. Kid doesn’t talk, has black hair. If you guys read this, can you tell me the name?
Scratch that, found it. Looks like it has 25 chapters, probably untranslated.