In their circle of friends, Lisa and Jisoo are the closest to each other because both of them have an outgoing personality. Lisa is a prankster, kid-like while Jisoo is a free-spirited girl who enjoys her freedom.

One day, a guy approached Jisoo and told her he likes her. Jisoo turned him down right away but the guy was so persistent in getting her number and just to make him leave her alone, she gave a number. But it isn’t hers but Lisa.

Lisa was so confused when she received messages from an unknown number and that’s when Jisoo told her what happened. She was just going to ignore the messages after one reply out of courtesy but from that one reply, followed by another one until she can’t stop anymore.

Until the time comes when Lisa felt that she’s starting the guy but then the girl that he likes and thought was texting with is Jisoo.