Salt
It's quite the serious fantasy story, but also falls under BL because of the romance subplot.
If you've got the time for it I'd appreciate an honest review, no need to mince words.
Travel back in time to the late Bronze Age in the biblical land of Canaan for an historically inaccurate fantastical depiction of life among the 12 tribes. An epic tale of forbidden childhood love explored through Middle Eastern folklore, Old Testament stories and Balkan/East European Jewish mysticism.
https://www.webnovel.com/book/salt-%5Bbl%5D_18006230705912005