- Both MLs are princes
- Kinda unhinged MCs
- FL saves ML early on
- Master/Servant dynamic (in Men Zhu with FL as the master and ML as the servant and reversed in Dong Lan Xue)
- Cold, ruthless FLs
- Both are short (about an hour each)
In both, there's a sect of people controlled by another group by a drug for which they must regularly receive antidotes. One of the sect's leaders is trying to find a cure so their people can break free.
Both are historical mini dramas with the same actress as the FL, playing a bold, strong, and domineering character. Both MLs are royal and weaker/in a position of less power than the FL.