If you could take the time to read this manga, I recommend that you should.

https://www.mangago.me/read-manga/saiaku_no_jinsei/

Start reading it from chapter 3
It's basically about an aimless top student who finally found meaning in life thanks to a troublemaker upperclassman with a heart of gold.

Do you agree that it would make a good example of ILI-SEE dual relationship?