Depth

In the near future, Seoul has gone underwater, forcing people to relocate to the mountains and the tops of skyscrapers. The main value has become items from the past, which are hunted by teenage divers. Among them is Sonyl, a girl who knows no other world and fearlessly explores the submerged ruins. One day, to win a bet and find the rarest artifact, she dives to a dangerous depth. Beneath the water's surface, Sonyl discovers a functioning android in the form of a young girl. She sees victory in such a find, so she takes her with her. Sukho, the android girl, awakens in a ruined world with erased memories. Now her and Sonyl's fates are inextricably linked by the search for fragments of a past life. Can Sukho regain her memories? And is it possible to find something valuable and precious in the present if the past remains at depth?