A Japanese pop icon returns to her late mother’s birthplace in a mountain village, joined by a former classmate and her boyfriend. Their trek into the forest turns dark after disturbing ancestral spirits. Trapped in thick fog, fear manifests into inner demons as supernatural events unfold, blurring the line between self-discovery and a descent into madness.

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.

Two high school girls, Yang and Tung, are besties despite their opposite personalities and different backgrounds. Their friendship is put through the wringer as they navigate problematic teen quirks, unrequited love, family complications, and dysfunctional high school life. If being a teenager wasn’t hard enough, one has to deal with the cultural minefield of being a second-generation immigrant.

故事講述三代同堂的泰雅家庭，哈勇阿公是家族的精神支柱，代表著部落傳承的阿公過世後，家族成員各項價值的衝突不斷，一場選戰，更讓家族感情一夕凍結，如同高山上冬季的那一場雪。