BL stories like To Take an Enemy’s Heart or any complicated/tragic stories but in the end it’s happy ending.
http://www.mangago.me/read-manga/dark_heaven/?dIqU
http://www.mangago.me/read-manga/the_baker_on_the_first_floor/?MMCu
http://www.mangago.me/read-manga/walk_on_water/
http://www.mangago.me/read-manga/royal_servant/?SIo9
http://www.mangago.me/read-manga/how_sweet_is_a_sugar_daddy/?I2XM
http://www.mangago.me/read-manga/geu_kkeute_issneun_geos/?V2OH
http://www.mangago.me/read-manga/back_to_school/?eriQ
http://www.mangago.me/read-manga/blood_bank/?hwn3
http://www.mangago.me/read-manga/lover_boy_lezhin/?DrMr
All are happy endings but might make you cry
Do you know any love stories where the main leads had tragic love story in their past life (one of them died) and they met again in present time like Hosik’s story,
Damn, its side story is so saddd.
idk if it's what your lookin for http://www.mangago.me/read-manga/keeper_of_the_pearl/
http://www.mangago.me/read-manga/xun_xun_shan_you/ - past life and where uke was born in the modern world and got isekaied back to seme
BL love stories about past lives