Ryan is the youngest and least accomplished of the world-renowned fashion tycoon Lady Elisabeth's grandsons. Out of nowhere, he is given a chance to inherit her multi-billion dollar wealth—but there is a catch to it. He needs a wife to compete in his stead. Unfortunately, Ryan doesn't even have a girlfriend yet. Before his Grandma returns to their hometown to perform the selection, he has a week to find the perfect wife. Will he be forced to choose his wife from his mother's candidates or will he find true love despite the rush? Will his mysterious condition even let him enjoy love in his life?