Masaki Ueda, who is now in his fourth year at university, has become so busy with coursework and job hunting that he found himself unable to spend as much time as he wants with his girlfriend Yuuko.

He felt that it was not good to let this situation continue, so until he at least gets a tentative job offer, he resolves to "abstain from Yuuko-san" for the time being.
There's supposed to be a reward that awaits for the amount of time he spent holding back!
For example, have the prim and proper, cool Yuuko-san serve him while she's dressed in just a babydoll negligee... and then get her to straddle him!!

Syoukaki-sensei presents, the third part of the awkward yet cool beauty's pure and wholesome relationship story!

(Source: DMM)