Wang Ji-Le, a handsome and passionate young man, just started university. As a freshman, he finally has the right excuse to leave home and move into a dorm. He encounters numerous ups and downs along with his three roommates, each of them relishing the crazy yet happy life at the dorm. They affectionately call their dorm "#729: The Happiest Place on Earth." Then, the principal reveals that both the boys and girls dorms are about to be torn down. Can they all work together to save the dorms?