'Seat Filler' was supposed to be an easy job for Kat. For one night, she would brush elbow with celebrities and make enough money for her travel plans. They have one rule: Don't talk to the talent. Too bad one of the talent won't take his eyes off her. And the talent just happens to be her Ultimate Bias. Ji-Hun, main dancer of CLAR1T, is excited to kick off their first U.S. tour by attending a large American award show. But what excites him more, is the stunning and devastatingly curvy woman stood to the side waiting to replace stars' seats. It wouldn't be the first time he broke a rule in his contract, and with a little assistance, he hoped he could get her to succumb to his advances. With the timespan of an award show to get her attention, will he be able to get her alone? Will she risk the fansites and break the only rule she has, to spend the night with HER ULT.