In the future urban "cocoon" where memories can be extracted, stored and traded, Lin Mo, a top memory mediator, can perfectly repair the broken emotions of others, but he has forgotten all of his own past. He is like an island floating in the vast sea of oblivion. Until one day, a mysterious woman Su Qing came to the door with a blank crystal carrying "Farewell on a Rainy Night". The moment she touched the crystal, ripples appeared in Lin Mo's dusty world. Lin Mo embarked on a dangerous journey in order to retrieve the memory that did not belong to the client but made him feel tingled. He will dive into the abyss of memory, fight against the huge forces that have tampered with history, and ultimately uncover the darkest secrets of his life and the city.
