Moonbyul finally had the guts to confess to Solar, but was rejected what will she do? Irene confessed to Seulgi but got the same results as Moonbyul. Will both girls give up or fight for what they want? They team up to get Seulgi and solar to fall for them, but what if they fall for each other in the process of getting the attention the ones they are in love with?

A nerd student named Solar was bullied by MoonByul. One day, she met Hwasa, who is secretly inlove with Wheein.

Seulgi was brokenhearted. She promised that she'll never love anyone as much as she loved Krystal. Because of a one-week get-together with her friends, she took back what she said. She didn't realize someone was just waiting for her.