What do you mean, please?
They are tattooed
Aaaah I didn't know people did fully covering tattoos quite like that. I thought it was a zombie marking
nah u can check people in real life have thos kind of tattoo
Its not a tattoo guwon isnt human and MC has something to do with it but lost his memories
It's clearly a tattoo but maybe covering something, if it wasn't Mc would notice and ask him about it.
¯_(ツ)_/¯ ¯_(ツ)_/¯ we'll find out later
Can't they see it clearly doesn't match the rest of his skin?