あらすじ
My peaceful school life... is officially over. Izumiya Ryouta, an introverted otaku, suddenly finds himself surrounded by the top three beauties of the class after a seat change. In front of him sits the little-sister-type Miyama Airi. To his left, the cool and detached gyaru, Ichinose Yuria. And to his right, the refined, black-haired class rep, Kuroki Ruri. On the surface, they're flawless beauties—but Ryouta stumbles upon secrets that none of them can ever let out... "P-Please...! Just don't tell anyone about this!" "From now on, we're in that kind of relationship." "This is a secret...
あらすじはAniListより（英語）。