I do not remember very well the plot of the novel, but it is more or less as well : MC is an officer in a wheelchair who works for a prince and the ML is a sadistic prince who takes interest in MC and violates it ... I'm sorry that's the only thing I remember, I believe it is a system of travel by different worlds ... Ah is a novel bl ..
This will probably be wrong, but there was an arc in There Will Always Be Protagonists With Delusions of Starting a Harem where it was an ancient setting but the ML was the one in the wheelchair when they first met. (He was also a controlling prince).
Its where the Mc was the wheel-chaired officer...the prince sleepovers in his bed.. then mosaics come in~ Handsome Broken Legged Little Military Advisor https://chrysanthemumgarden.com/novel-tl/pd/ Chp. 14-30