A story about the friendship, love and bond between four police officers from different departments. Suzunosuke Shikahama (Kento Hayashi) became a police officer because he admired Sherlock Holmes, but he had almost no chance to reason after becoming a police officer. He was also suspended for accidentally leaking important investigation information. Yuhi Mabuchi (Taga Nakano) from the General Affairs Division usually handles miscellaneous tasks in the bureau. He has no connection with investigations, but he was ordered to supervise Suzunosuke. They each have their own secrets, and as they solve difficult cases one by one, they are gradually drawn into an irresistible vortex of fate.