Jay Chou's first attempt at directing, Secret, combines his musical background with a romantic story, and it was shot at Tamkang High School, where he went to school. While some people had thoughts about his acting, the work he did as director, writer, and composer received praise, particularly regarding the visuals and music. The film took home awards for Best Original Song and Best Visual Effect at the Golden Horse Awards. The story focuses on the romance between Xianglun and Xiaoyu, featuring an unforeseen element that catches viewers off guard and gives more substance to what’s happening. There's a noticeable connection between the two main actors, even though Gwei Lun-mei’s performance was stronger than Chou’s. Certain secondary characters, like Qingyi, don’t feel fully developed, and some possible side stories aren't explored. Even with the time travel element adding emotional impact, problems with how things look across different points in time (like uniforms and pianos not changing over two decades) detract from believability. Nevertheless, the piano playing scenes are a highlight, demonstrating Chou’s musical talent. The film suggests that love can overcome time, but sometimes, accepting that something is over is the most loving thing to do.

Source on TMDB