本片是一部日本短片片，由工藤雅导演，由主演。
剧情简介：A back-and-forth correspondence between two filmmakers living in Tokyo and Taipei. These video letters began during the COVID-19 pandemic, when it was difficult for them to meet in person, and continued until 2024. The letters follow a simple rule: each reply must quote a sound or image from the previous letter. These quotations become loose threads connecting the letters, yet each one stands alone as a complete, self-contained world.
别名：Jouhatsu Letters / 증발 편지
类型：短片
地区：日本 / 中国台湾
导演：工藤雅 / 張若涵
