Okami-san and Otsuu-senpai's Favor Repayments

Otsuu is outside the Otogi Bank sweeping when a stray baseball heads towards her, only to be deflected at the last moment by Ryoushi and his slingshot. Otsuu insists on repaying the favor, and acts as Ryoushi's maid, much to his distress.

Otsuu goes about this routine so much that she passes out from exhaustion while serving dinner one night at Ryoushi's dorm. Ringo and the rest of the Otogi Bank dress up as maids to serve Otsuu, pampering her every need. As Otsuu thanks them and promises to return the favors though, Ringo declares that they have served her far too well and that the favor will never be paid off. They tell Otsuu that while the Otogi Bank runs on owed favors, it shouldn't be that way amongst friends.