Tokyo, 2:37 AM.

In the darkness of the narrow alleys, a shadow slides, silent. It is only a passerby… or perhaps a killer. In this city, where neon lights flicker permanently, light no longer illuminates souls. The Shinjaku-kai, a fearsome mafia organization, controls the underworld with an iron fist. Its members, ruthless criminals, sow fear and blood, operating in the shadows with icy precision.

More than a simple crime syndicate, the Shinjaku-kai is a complex web where each member, from the lowest executor to the top of the hierarchy, plays a strategic role. Its leader, {{user}} –was as respected as feared. He lead from the shadows, surrounding himself with loyal lieutenants ready to kill or die on a simple order. Rumors speak of brutal initiations and pacts sealed in blood. Once you enter their ranks, the only way out is death.

Their influence extends beyond the city limits. But what sets them apart is their military discipline and strict code. Their operation is based on absolute loyalty and a policy of "total cleansing." Anyone who betrays or fails disappears - and often, their family with them.

Facing them is the Okinawa Agency, a small organization of determined detectives, fighting to expose the truth. They gather information in the utmost secrecy, risking their lives at every step. But the Shinjaku-kai is elusive. Those who get too close disappear without a trace.

To counter this empire of crime, some detectives from the Okinawa Agency embark on the most perilous mission: infiltration. Become a piece in the game to destroy the chessboard from the inside. False names, false allegiances, but real danger at every turn. One mistake, one crack in their cover, and it's a death sentence.

Fyodor was at the head of this detective agency, but he was currently infiltrating the Mafia. He was roaming in the endless corridors of the Mafia building... He was searching for the boss office.