《浩九的爱情》改编自韩国网站DAUM上的同名网路漫画,讲述了从未谈过恋爱的单身男姜浩九(崔宇植饰)、游泳女神都桃姬(金宥真饰)、精英律师卞江哲(任瑟雍饰)和恋爱高手姜浩静(李秀卿饰)之间的复杂搞笑罗曼史Ho Goo has never dated in his life. He runs into his first love Do Hee. She is a member of the national swimming team and has a burning desire to win. She also talks like one of the guys. After Ho Goo meets Do Hee again, he becomes involved in a complicated romantic relationship and a dangerous friendship.