In 1941, the "Snow City" of the Puppet Manchukuo, located on the Sino-Soviet border, was named because of its perennial snowfall. It became the intelligence center of the Japanese army. The fierce game between the CCP agent "White Birch" lurking in the Puppet Manchukuo Police Department and the Japanese Army's Special High School Section Chief "Ghost Face" was a unique scene in biological warfare. Indigo grass is the carrier of memory and redemption. From the fragrance of the plants in the dyeing workshop to the sea of flowers in the meadow, it has witnessed the rebirth of all experimental subjects from numbers to names; the jackdaw is a spiritual symbol throughout. The pattern on the homecoming cloth, the silhouette of the blue cloth lantern, and the outline in the light and shadow of the soul tree all point to the theme of "homecoming". The combination of the two not only retains the warm texture of the vegetation in the story, but also coincides with the core of overcoming suffering and finally being reunited. From the weird beginning to the happy ending, the story echoes. All are insightful and fascinating. In fact, there are secrets buried under every inch of snow in Snow City, and every falling snow may cover up a murder.
