陰キャの俺が席替えでS級美少女に囲まれたら秘密の関係が始まった (Associated Names)

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…