In school, Wang Hsiao-hsia and her childhood friend Yuzu are seen as a couple, but Hsiao-hsia secretly longs for the transfer student Cheng Yih. Cheng Yih, admired for his exceptional grades, talent, and fighting skills, captivates her heart. Despite her poor academic performance, Hsiao-hsia tries various methods to win his affection, but nothing works. Unbeknownst to her, Cheng Yih harbors feelings for Hsiao-hsia as well. Meanwhile, Yuzu, fiercely protective of Hsiao-hsia, is wary of anyone trying to get close to her. As summer arrives, a fragrant first love begins to bloom among the three of them, reminiscent of lemongrass.
Unfortunately the movie I am the Secret in Your Heart is not yet available on HBO Max.
| Directing | Lai Meng-Chieh | Director |
| Lighting | Hung-Yi Hsiao | Gaffer |
| Production | Wei Chung Chen | Production Designer |
| Camera | Kao Tzu-Hao | Director of Photography |
| Writing | Lai Meng-Chieh | Writer |
| Writing | Holly Yushan Chan | Writer |
| Production | Chi-Yuan Chen | Executive Producer |
| Production | Eva Hu | Executive Producer |
| Editing | Kipo Lin | Editor |
| Sound | Shou Lou | Theme Song Performance |
| Sound | R.T. Kao | Sound Supervisor |
