A cheerful and provocative romance between an unlikely pair with differing personalities and tastes evolves. At work, Jung Ji Hoo is blunt, cold, straight-laced but adored by his female co-workers. One of them will mistakenly open a package of his that will leave her bemused. Ji Hoo never made mention to Ji Woo of his owning a pet! Unbeknownst to her, Ji Woo had just exposed his sexual fetish for all to see! Lengthy discussions with Ji Hoo ensue, arriving at a suitable arrangement for both. Ji Woo embarks upon one racy romance by indulging in Ji Hoo's master/slave fantasies. But what become of this kinky duo once their contract ends?