Haruka Sakurai is the substitute English teacher who takes over after Yuni Kurugi's homeroom teacher goes on maternity leave, and genius-girl Yuni loves the way he looks-but she hates his flashy attitude. Thanks to that, her English grades have plummeted (everything else she has a perfect score on)! Now she has to take extra lessons with him after school, where she discovers Sakurai's gentler side...?!
At long last, they spend a night together, away from home... (but it's just a class trip). Yuni is desperate to get a photo together with Sakurai-sensei in historic Kyoto, but all her efforts are for naught. And then, a crisis that will shake the very foundation of their love approaches...! As always, volume 3 of this "forbidden (?) love" comedy is packed full of twists and turns!