Reward for rushing to someplace and nothing else: face burried into some boobies. His reward desires are getting more refined each time. Beating a major enemy is gonna result in sex at some point.
@Zhulok You haven't been paying attention have you? Tenka only thought of him as a slave when she first met him she legit likes him now as a person do you not remember the chapter where she imagined her and yuuki together with a kid?
@MesaOracle Remember the time he got capture by his sistrr, then fought with the Thundrr Gods nshit, then his reward was spicy af, but not as spicy as I'd thought.