Shota keeps playing pranks instead of studying, causing his grades to plummet. Seeing this, Mio, his big-breasted tutor, offers him private lessons. However, these one-on-one sessions only fuel Shota's mischievous behavior. He teases Mio's nipples, demands blowjobs, and persistently seeks her night-time pleasures. Continuously tormented by Shota's cock, Mio eventually succumbs, becoming completely submissive and falling entirely under his control.