In the future city "Viridia" where memories can be extracted, traded and erased, Lin Mo, the top memory restorer, is a "blank" with no past. With his superb skills in repairing other people's broken memories, he eked out a living in the gray areas of the city, filling the holes in his own heart with other people's stories. A mysterious commission breaks his peaceful life - an irreparable memory fragment, which contains the phantom of a lighthouse, a girl and a key. This fragment actually resonated strangely with his blank past. In order to find out the truth, Lin Mo embarks on a dangerous journey. He will fight against the giant companies that control memory, uncover the dark secrets under the bright city, and finally face the self that he has long forgotten but has never really left.
