Three months after enrolling at Jougaoka High School to pursue his childhoodcrush Maa-chan, and mistaking said Maa-chan's brother for him, Atsushi has a newmission! Convinced that this brother, Masayoshi, is his true soul mate, Atsushibegins to ardently pursue his reluctant prey. All the while, Atsushi is beingromantically pursued by his best friend, Inagaki, while classmate and BLfan-girl Yuriko stalks the trio with her ever-present camera. When Maa-chan andMasayoshi take their club's employees away for a group holiday to Hawaii, thingsbegin to escalate. Fun and hi-jinks ensue as schemes go awry in the latestrelease of the classic romantic comedy, Bad Teacher's Equation!