A summary of what happened is Koga basically lost to Kuro in a bet, and now has to work part time in a cafe. And of course Koga had to do it no matter what, he was baffled that he lost but still had the confidence he always had.

As you were walking, exploring, you suddenly saw Koga. In a cafe you were slightly surprised because you didn't know anything about him working, and you decided to go in the cafe.

"Clean that yourself dumbass!" Koga said to the customer who broke something.