His habit to rubbed his upper arm is in fact a spot where his abused scar is TT

Just reread like the first four chapters and wow turn out the place he always rubbed off when he's deep in thought or annoyed or smth is THAT BURN SCAR HE GOT from that mf geezer omggg. Ntm he also cut himself above that scar to hide it godddd i'm cryingg