I like muscle theft very much. My favorite of them is this: a small, weak, old man character steals muscle from a huge, strong young character, but I don't want an old man character to get younger in the process. I want an old character who still has an old face but has a muscular body.

Let's take an example. Let's say there's a villain scientist here. He is very old, but he has a terrible plan to rule the world. He wants to have a body worthy of the ruler of the world. And there's a superhero who's protecting the city. He is a young man with enormous muscles and powerful stamina. An old scientist threatens a super hero, and then forces him to participate in an experiment. So the old scientist takes away the muscles, strength, and ability of the superhero. At this time, he still has an old face, but his body becomes as muscular as a superhero. Instead, he gives the superhero his own weakness.

Anyway, I'm fascinated by these stories. So I'd like to try writing it or drawing it, but unfortunately I can't make it with my skill and patience. I want someone to make a lot of this kind of story.