"Promise me that you wont leave." he said, lifting his pinkie towards her.
"Promise" she said while locking her pinkie to his with a sad smile.
Kim Soyoun Eunmi, who left Baekhyun, because of her parents job to go to America has came back to Seoul 4 years later. Now she is back to fix things up.
Byun Baekhyun, who loved Soyoun since then, has not moved on yet. Soon, when the members met with Soyoun, things gotten out of hand.
Will the 12 of them be friends again with Soyoun, just like 4 years ago?
Will Soyoun be able to change some of the members heart who has a hatred feelings towards her?