Looking for a manga where the older brother being always number one in terms of studies and suddenly fails one test. After years his brother studied at an elite school while studies at a normal school. He taught he is being hated by his brother

I'm pretty sure that's Iki o Hisomete, Koi o.

Thanks!

Also looking for a manga with a scene where the two lovers plan to live together and the seme is younger and also a highschool student. Then his mother saw them together and did not acknowledge their relationship