Not if all parties agreed like them. Maybe it's not for you tho
If all of them got consent then no its not fuck up its not like they forced each other to be in relationship
I agree with the above comment because you'll always end up loving or liking one of them more, and there will be jealousy and all
Ah i get what you meant , well not all people can adapt to poly relationship but theres healthy relationship poly out there regardless , i think from manhwa its a good start for their poly relationship
You can never love this kind of relationship it's so fucked up