Kengo discovers a secret diary full of lewd fantasies written by his girlfriend Yui in her room. She catches him snooping around and without thinking, he blurts out to her that he'll do anything she wants for her forgiveness; of course as his girlfriend she takes him up on his offer and makes a request♪

Written in the diary were all sorts of naughty things. She wants the two of them to experience e~verything in it together♪

The super popular Syoukaki-sensei draws flirty, lovey-dovey sex with a girlfriend who's pure-hearted but also just a little bit out of control♪

(Source: DMM)