Lee Jinki, the foremost authority on soul splitting, has renounced his practice and sworn to never again work as a mage scientist. His resolve is tested by reports of a new phenomenon--patients suddenly appearing missing fragments of their souls. Burdened with the knowledge that he is perhaps the only one in the world who can solve this mystery and heal those afflicted, Jinki takes up the case as a favor to an old friend. But what he finds drags up the very depths that he tried to run from, the relationships he tried to bury, and the horrid secret that ruined it all.