It's a typical game of cat and mouse, whereas Eli is the cat and Soohyun is the mouse or is it vice versa? Since Ukiss was formed Shin Soohyun has capture the eyes and heart of Eli Kim, but he never confess to the leader. As the Ukiss members are vacationing at a private beach house from their recent Japanese tour, Eli decides that this is the time for him to capture his most value prize. He starts a silly game of tag with one purpose in mind; catch Shin Soohyun. Unbeknownst to him, Soohyun has been in love with Eli since day one but never had the courage to confess. The rest of the Ukiss members, including new member Jun known about the two idiots feelings for each other and decides that they will help the two whether they like it or not.

Will Eli finally catch Soohyun? Will he finally confess? Or Will Soohyun finally capture the elusive rapper and confess?