這是一個女孩尋找自我的故事。
一個夢想成為芭蕾舞者的女孩樂樂，卻總學不會優雅地微笑。練習室總響起「來，笑一個」，彷彿笑容只是每個人都能輕易擁有的小事，但對她而言，卻可能成為放棄夢想的理由。
每天，她重複相同的舞步，尋找舞蹈對自己真正的意義。好友小美默默守護她，陪她探索舞蹈與笑容之間的秘密。直到那天，她們再次站上舞台。燈光熄滅，音樂停歇，一聲意外打破日常。黑暗中樂樂找尋到自己的答案。

This is a story about a girl searching for her true self.
Lele dreams of becoming a ballet dancer, yet she struggles to master an elegant smile. “Come on, smile” echoes in the studio, effortless for others but not her.
Day after day, she repeats the steps, seeking the meaning of dance. With her friend May by her side, they return to the stage. An unexpected moment shatters the routine. In the darkness, Lele finds her answer.