Judging by the way the Ex's friend talks about how Yoomin will come running back in Hyeondu POV chapters i have a feeling that's who was on the phone.
However, a massive betrayal would be the sister. Not likely but it would Sting and also be a good way to have her want to remove all strings attached to her Ex.
Judging by the way the Ex's friend talks about how Yoomin will come running back in Hyeondu POV chapters i have a feeling that's who was on the phone.
However, a massive betrayal would be the sister. Not likely but it would Sting and also be a good way to have her want to remove all strings attached to her Ex.