https://www.mangago.zone/read-manga/tale_of_the_yellow_dragon/
( Completed)
https://www.mangago.zone/read-manga/dawn_of_the_dragon/
https://www.mangago.zone/read-manga/when_you_are_asleep/
https://www.mangago.zone/read-manga/the_mountain_branches_dream_of_goblins/
https://www.mangago.zone/read-manga/the_world_without_you/
( Completed , it's not really a oast life one but this is sth similar as MC is taken as substitute and it definitely has a chasing arc )
https://www.mangago.zone/read-manga/the_secret_of_the_depths/
( This too is a new comic with similar troop , mermaid story )
https://www.mangago.zone/read-manga/the_world_without_you/
Ex wasn’t really a person but well ML considered him as such so yeah
BL manhwas where the seme has a past life, past lover, etc. BUT ITS NOT the uke and instead the seme gets over his past lover and moves on and starts to like uke. Preferable if there is a chase arc