After transmigrating into the Fairy Tail world, he becomes a spirit contractor.
Rock: "So, if I tell you to do something, you have to obey and do it, right? Anything I want... Anything at all?"
Silfin: "You're my master? Give me orders! Hey, hey, hey... You damned fool. I've been talking to you for ages, and you still haven't figured out who's in charge, have you?"
"I should say, I'm your master, and you're my servant. If you don't listen to me like a good servant, then I, your master, will..."
Rock: "Tch! So that's how it is! What kind of stupid spirit contractor is this? Nothing works the way it's supposed to! I got my hopes up for nothing!"
