
Shu was a decent antagonist in the original Dragon Ball anime.

He was a minion of Emperor Pilaf, basically being one of his only two employees.

And he was a very loyal fellow because he put up with a bunch of crap from Pilaf.

Him, Mai, and their boss somehow survived not being totally obliterated by King Piccolo just from being annoying. And that’s basically the last we see of them until Dragon Ball GT and Dragon Ball Super.