At Prefectural Hachiten High School, also known as Haten High, there are two "strongest" guys. The legendary manwhore, Mikagura Iori, who hooks up with a different girl every day, and the untouchable Sena Minami, who enjoys turning the tables on any guy that comes for his ironclad ass. It's the ultimate showdown—strongest spear vs. strongest shield—who will come out on top? Mikagura and Sena decide to settle their differences with a sex battle. But as the battle heats up, unexpected feelings start to surface...?! "I never thought I’d get turned on by a guy." "Could this be... love?" Both of these tough guys have their "lower halves" at max level, but they’ve never experienced real love. And so begins a pure love comedy!