The brothers were really close when they were little and the older brother always had tutoring and was really smart and I remember the mother took him to get a test done so he can get into a good school but he failed the exam and the mother was on the floor crying asking him why he did this. when he turns to look to the side he sees his little brother and he takes it as his little brother is looking down on him for failing the exam. From then on he ignores his brother and mother never talks to them turns into a bad boy always sleeping around. The younger brother always confronts him berates him calls him names but he just ignores him which only angers the brother more....please Help me find it's killing me 😢

I think it might be Iki o Hisomete, Koi o.

Oh my good that's it! Thank you so much!