Who pays off?

[Guy McSucker]

Party 3/6. I can't win whatever limit I play so might as well play where the rake is the worst, eh?

I have K9 in the BB. A new player sits UTG with $50 and posts a blind. He checks and it's folded to me. I check.

Should I raise here?

Flop: K J 7 no suits. I bet, he calls.

Turn: 3. I bet, he calls.

River: 5. I bet, he raises.

7-1 odds to call. It's obvious he has no clue what he's doing, unless sitting with no money and posting UTG is a clever ruse. Wanna call?

Guy.