Lin Yu

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.

Yang Zi-xiang is sent to Taiwan for business negotiations but gets attacked. He hires Jiang Shao-peng to take care of him, and takes this opportunity to escape from his family responsibility while also falling for Shao-peng. Zi-xiang's assistant Feng-jie acts as a stand-in for his boss, and Xin-jia, the assassin hired to get rid of Zi-xiang, repeatedly fails to take out his target. While Feng-jie manages to escape, sparks of love start to bloom.

Wei Qian, thrust into adulthood after losing his parents, faces turmoil when his adopted brother Xiao Yuan confesses feelings, challenging family bonds and emotions.