It was a Yaoi about this typical nerd who was saved by the bad boy of some other school an...

It was a Yaoi about this typical nerd who was saved by the bad boy of some other school and so the nerdy boy changes his style into that of a delinquent and follows the guy who saved him to his school. At first the guy is cold to him and tells him to get lost, the nerdy boy wears him down and they become lovers. His classmates commented at the end about how he finally got the delinquent guy to warm up to him. The nerdy boy also calls the delinquent guy aniki and helps him with his studies and says that's all he's good at.
Please help me find it!!