The Cursed Love

Both are Thai BL dramas that have supernatural elements such as past lives and magic. Khemjira has more of a horror element than The Cursed Love.

Both concepts revolve around the themes of reincarnation and enduring love that transcends the years.

Both are recent thai boys love dramas with a bit of an unusual setting (or at least no school/uni/work/completely modern day setting like most BL).
Both star Ongsa a main role, so if you liked him in either one of these shows, you may also want to check out more of his works