I saw someone recommend it for prison yaoi.
Idk but i feel like this story was way to rushed, maybe because it's pretty old but to bad, it was a little to fast for me zo enjoy anything
There is second part -
https://www.mangago.me/read-manga/under_grand_hotel_cross_over/
The way I JUMPED when I read cher- I never thought I'll hear this name again, I'm dropping it