Boy_Friend summary: If we're just friends, why am I blushing? Model student Yuseong finds an unlikely friend in Dabin, the school's troublemaker, after he promises to help her get her grades up. But there are strings attached and Dabin must return the favor. Will both of them get what they want? Their high school lives are about to get a lot more interesting... Boy Friend / A Male Friend / 남사친구