Unperfect Couple

Hae Rin is a school student. She was also a cheerful and steadfast girl. She admits she still likes her ex-boyfriend but is only known by her best friend. To get his ex-girlfriend's attention, she uses the arrogant boy, Min Jun to pretend to be her new boyfriend. However, Min Jun falls in love with Hae Rin. He gave full attention to his 'girlfriend'. Hae Rin thinks that Min Jun is in love with her best friend and agrees to help Min Jun get Areum even though she already has a boyfriend.

"We are an unperfect couple"
"We are not a couple if we do not have feelings of love"

Min Jun feels Areum try stabbing the back of her best friend. Then, he immediately warned her to cancel her intention to do bad things to Hae Rin. Hae Rin thinks Min Jun met Areum for expressing their feelings. Hae Rin reminded her would be excited for them, she even felt sad when thought about it. So, she takes the option to stop pretending to be Min Jun's girlfriend as well as stop getting the attention of her ex-boyfriend.