1890 - taehyun, a nineteen years old boy who lost his entire family and the ability to walk due to a fire, wich burned down their entire mansion three years ago. beomgyu, a young, handsome man in his twenties pursuing the last wish of his deceased fiancée, to become the butler of her beloved little brother. promising to fulfill her request, he swears to stick by the younger males side until the day he dies. what he wouldn't have imagined was taehyun's attitude, that was far from easy to handle. nonetheless, beomgyu's strong desire that was blossoming inside his chest to see his margaret again, makes him endure his new job as a butler. but, what if his heart involuntarily opens up once again towards the young master? will he dissolve his pact?