2112, Tokyo. Two new detectives have been assigned to the MWPSB Criminal Investigation Department Division 1. Nadeshiko Kugatachi is an Inspector whose memories were wiped, while Takuma Tsurugi is an Enforcer who is searching for his missing childhood friend. Calm, serious, and unable to comprehend human emotions, Nadeshiko meets Tsurugi, a hot-headed man determined to become a tough detective. Once they encounter each other, the gears of fate begin to turn.

The story takes place somewhere far away from Tokyo in the once futuristic Sado Marine City. What will their answers be when they reach the "truth"...?