Age Gap romance where the MC falls in love with his mentor/father figure?

Seeking a MM romance where there is an age gap with the MC being younger than the love interest. As well as “found family” themes where the MC falls in love with someone he looks up to and admires.

I don’t care about the setting or genre (whether it’s fantasy, contemporary, sci-fi, etc) as long as it has the themes mentioned above, I’ll work with the rest.

by Yoffuu