This was good but a few things:
First of all the guys brother is a prick, no two ways about it. He knows his brother is has always had a hard time because of him but yet he continuously messes with him. Apart from that would taking his brother girlfriend really make him fkn happy, like dude that’s just messed up.
Second why the hell was the brothers confession just dragged on through the entire manga. Normally a rival arc happens over the course of a few consecutive chapters but in this case it happened in one chapter where he confessed and then much later on coming down to end where he confessed again.
Last is the FL in the chapter coming down to the end where she was sad that the ML didn’t tell her about his family situation. Like bitch there’s probably been around 2 or 3 times that I can remember where the FL didn’t tell the ML anything until he found out and confronted her. The situation about her deciding to go to a public university and also when she was staying back late everyday to practice her art (with the RIVAL MIGHT I FKN ADD) but yet she gets sad/angry when he literally doesn’t tell her once. The thing is too I’m sure he would have told her as well but since she’s was staying back late every day do her art he didn’t get a chance.
Also I say this almost every shoujo please for the love of god give us a good epilogue showing us the characters future. Yes we kind of got one but that’s literally I would guess 1-2 years in the future because it shows them in university and the story basically ended right after they were accepted. When we get an epilogue to satisfy readers the main tHing it should always show is either marriage or kids, simple. If these points were cleared up I would without a doubt give it a 9/9.5 give or take, but with them eh maybe 7.5