In the future, memories can be erased with precision. "Memory Cleaner" Ling Chen is known for his calmness and professionalism. He wanders through the broken hearts of others and erases the source of pain. When he received a seemingly simple commission - to delete an unforgettable love memory for the mysterious woman Su Wei, he fell into an island of memory built of sadness and warmth. The lighthouse on the island guards a past that is unwilling to be forgotten, and also illuminates Ling Chen's own dusty past. In this game with memory, he begins to question his professional creed: Is erasing pain a cure, or another form of exile?
