"Memories anchor me to the past, but dreams carry me to the future."
Seeking to connect with her roots, Xiaoming leaves her familiar life in Japan and crosses the ocean to attend university in Taiwan, her late father's homeland. But navigating a foreign country completely alone proves harder than she imagined. Struggling just to find a place to live before the semester starts, a disheartened Xiaoming wanders into Treasure Hill, a historic and tranquil settlement quietly breathing in the heart of Taipei.
Hidden within its winding alleys is "Hyakunichi Coffee," a quiet coffee shop steeped in an intriguing urban legend: it is said to solve the deepest troubles of anyone who walks through its doors. Run by the enigmatic owner, Meng, the cafe is more than just a place to rest: it operates as a secret "Dream Laboratory" that delves into the fragments of people's memories.
"Why does my father keep speaking to me in my dreams?"
Guided by the memories of the Chestnut Tiger, a fragile butterfly known to migrate 2,000 kilometers across the sea, Xiaoming embarks on a surreal journey through "Memory Palaces," transcending the boundaries of time and space.
(Source: Kadokawa, translated)
— Description from AniList community (anilist.co).