Answer:
I think it would be "Who (knows) somebody that does tattoos?"
Nendo is basically Saiki's sidekick. He's not very smart, and he thinks Saiki is his best friend, even though Saiki doesn't like him. Saiki also can't read Nendo's mind. I belive yare yare means "Oh my," or something along those lines.
The answer is
2.research skills
