Two pairs of bestfriends.

Chaeyoung and Jennie

Lisa and Jisoo

When the four of them met. Jisoo and Jennie instantly like each other.

But the thing is, Lisa and Chaeyoung is in love with their respective bestfriends.

Jisoo and Jennie started dating.

Lisa and Chaeyoung befriends each other.

But what if,

When Jisoo and Jennie realized that they are not the real owner of each other's heart,

the real owners are already falling for each other.