I'm sure there are people who have watched the legendary kdrama, the lonely and the great God goblin. I watched it long ago, so I don't remember the plot clearly, but it left me intrigued. I'm looking for bl novel like that kdrama. Uk where the mc is human or can be anything else, ml is goblin/grim reaper or anything, ml is MC's gaurdian becuz mc is his bride/husband (?) [I'm so freaking sure I've blotched the plot hard]. Supernatural elements uk✨✨
Ummm...what about a drama with the same title...a chinese drama from the novel with the same name..."Guardian" by priest? I haven't seen the drama yet, but I read the novel...its really good. recommended. But i'm not sure about the drama...hehe
Haven't seen the kdrama, but you could check out the manga Secret Knife (Himitsu no Naifu) by Naono Bohra. The story consists of 2 or 3 oneshots. These oneshots have later been gathered in some collections (check Denki and Dakishimetakunai). MC is an assassin and ML is a shinigami.