In the captivating short film "Lihim," drawing inspiration from K.Will's evocative music video "Please Don't," we follow the enigmatic tale of A, a person harboring unspoken feelings for Ethan. One day Ethan receives a series of anonymous love letters mysteriously left on his desk, in his notebook, and even in his bag, he becomes consumed by curiosity. With the assistance of his close friends, Maki and Yuri, Ethan embarks on a quest to unravel the identity of A. As they delve deeper into the clandestine affair, tensions rise and suspicions abound. Will Ethan uncover the person behind the heartfelt letters, or will suspicions lead him elsewhere?