Xinzhe, a young advertising creative, met Jingyi by chance on the subway and fell in love with her at first sight. He could not forget her for a long time after they broke up. His group of roommates who were not very smart came up with different ideas to promote this wonderful marriage, which instantly caused chaos in the whole city. So, a group of crazy girls, together with the hero and heroine, staged a ridiculous love-chasing action.