Feauding Heart's Yesterday Was Blue

Zhehan and Zi Shu were related cousins with carbon copy features; their faces were so similar to each other. One was an unknown singer newbie abroad while the other was an actor.

Under unfortunate circumstances, Zi Shu met with an accident. Visiting his cousin in the hospital, Zhehan was faced by his grieving aunt with complete rage and determination in her eyes, stating a request that he could never imagine.

Following this request, Zhehan tried to learn everything about Zi Shu through his diary. And there he encounters the name Gong Jun, the only name he encountered after reading Zi Shu's diary. Now he must uncover the cause of Zi Shu's accident and solve the mystery of Zi Shu and Gong Jun's relationship. While his feelings were growing like blossoms in spring inside his heart.