You Call That Service?, Vol. 4 (light novel)

A date with...Sasara?!
Ryouta seems to be running around Sasara’s mind a lot lately. Suddenly coming to
grips with her feelings, Sasara asks him to discuss the idea of marriage. As if the
usual rival’s for Ryouta’s affection weren’t enough, he’ll also have to deal with
Sasara’s father! And what’s this about settling things with a battle? Ryouta doesn’t
stand a chance!