Bromance ¦ Fanservice ¦ BL ships

Fanservice HEAVY, with solid romance. I been meaning to re-read this, but I used to love it back in 2015

I gotta re-read but I was obsessed with the bond of the MCs when I was younger. Will update this once I re-read.

The tutor X all the princes; the tutor x the king;
Strong bromance as it is about the tutor gaining the trust and affection of the princes. The art is very bishounen and there IS fanservice but I read this long ago so I can't go into specifics.

I read this LONG AGO and tagged as bromance AND fanservice, I have to re-read for a proper review but I do recommend it

Maria X Mary
(just got reminded this existed and i wrote that they felt like an item on my review. Will need to re-read to point out properly the fanservice/bromance factors)

This is tagged as romance and shounen-ai but really, there's nothing concrete, so it comes here

Technically cousins with a age gap. Effectively? Bromance with fanservice included

Ok so this MIGHT be a reach, I'm unsure whether is bromance or just male friendship.