Han Yu, a girl from the south, met Gu Chen, a boy from the north, at Mingde University. She was moved by his passionate but clumsy love and fell into a sweet and suffocating relationship. The trauma in Gu Chen's native family made him extremely insecure in love, and his suspicion and possessiveness gradually pushed the relationship between the two to the cliff. After a fierce quarrel, Han Yu mistakenly believed that Gu Chen was in love with someone else, and angrily accepted the pursuit of fellow countryman Lu Zicheng. Gu Chen couldn't accept Han Yu's "betrayal", and his frantic efforts to redeem him backfired. Graduation is about to begin, and Han Yu is faced with the dilemma of living in a different place between the north and the south and staying in her hometown - she loves Gu Chen, but being with Lu Zicheng is easier and has a better future. This entangled triangle relationship eventually pushed her to a crossroads where she had to face her heart.