It was a shoujo romance manga. Mc and ml are students (high school?). I remember that he was handsome and popular and the mc didn't like him at first but later fell in love with him. I remember one scene that they were trapped in the gym storage room. Also the ml had a crush on his older brother wife and she was pregnant. I think he said something like I like you 5% to the mc (maybe I'm completely wrong).
It was a shoujo romance manga. Mc and ml are students (high school?). I remember that he was handsome and popular and the mc didn't like him at first but later fell in love with him. I remember one scene that they were trapped in the gym storage room. Also the ml had a crush on his older brother wife and she was pregnant. I think he said something like I like you 5% to the mc (maybe I'm completely wrong).