help me find the title of this manga pls!

I remember reading it a long time ago but can't remember the title.

it's BL. dom/sub dynamics (I think?) and if I remember correctly, the protag is from another world or got transported or something into a dom/sub dynamics world. ML is like a captain or leader of a guard or something. Protag at one point tries to be sub with another guard member (to not bother ML as much) and ends up sub dropping (I think?).

please help! I don't think it was finished when I first read it so might be done now maybe?