おそらくカノジョは俺の兄貴を狙ってる

Youta Touno, a high school boy who distrusts women. Having been used and deceived repeatedly by girls who wanted to get close to his handsome older brother, he decided never to trust a woman again. Meanwhile, a beautiful girl from his class named Izumi Houjou appears, constantly talking to Youta!? Is she after his brother…? What is truly in Izumi’s heart――. A suspicious love comedy begins right here