When the Introverted Me Got Surrounded by S-Tier Beauties After a Seat Change, a Secret Relationship BeganNewnkyā no ore ga sekigae de S-kyū bishoujo ni kakomaretara himitsu no kankei ga hajimatta ; ; 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