A new girl at school?

Minji, Hanni, Danielle, Haerin and Hyein are all in a relationship but what happen if one day a new girl come into their lifes.
Will they all like her?
Will some of them be jealous?
Or just make the couple bigger?

In this book Hyein is the same age as Haerin but she is still the youngest.

I'm so bad at description sorry.
And english is not my first language so yeah...