It follows a pair of school sweethearts who part ways and meet again in a story about never giving up on love and bravely chasing after your dreams.

Zhou Xiao is a big fan of detective novels. Zhao Fanzhou is a student of forensic science who is talented in the field. The two fall into a sweet romance, yet their story ends in a heartbreak when Zhao Fanzhou breaks up with Zhou Xiao. One day, they meet again.