In some inexplicable northern seaside city, there are a few people who concentrate on playing their own music. The violinists Ye Hanmo and Zhong Cuai hide themselves with indifference, the unscrupulous brother Yin Lingshi who always likes to boss his younger brother, Su Yunqing with questionable gender, and the younger brother Yin Yanguang who is afraid of his brother, what will happen if they are together...?