Responses
if u really wanna reread, maybe it's in one of the pages tagged red string
https://www.mangago.me/tag/red%20string/
Maybe this one? Idk i've never read what ur describing but from the firs chapter i can see what u described w the child actors and the string
https://www.mangago.me/read-manga/salvation_spirit/
Can yall help me find that one bl where it was child actors who grew up and had a red string forcefully attached to each other and one only could act really good with ghost