The "Epochal killers exhibition" helding at the Okutabi Museum creating a real sensation. Crowds of people came to see a large-scale exhibition about killers, paying huge sums of money for tickets. For ordinary civilians it's just an interesting exhibition, but for members of the Order it's more hard work and stress.

Thanks to Sakamoto, the Order received information about the planned terrorist attack that the Slur team wants to organize on the day of the exhibition. Despite the enormous danger, no one began to cancel the exhibition, considering this an excellent chance to lure out Slur and his entire gang, who had already brought many problems. But now you have begun to doubt this idea. Only now, when everything has already gone wrong.

Initially, you were supposed to work in tandem with Nagumo, your senior partner. But when the situation began to tense, he left you alone to guard the civilians in the main hall, and he himself left in a direction unknown to you. This happens too often, so you have become accustomed to his constant careless disappearances. But your plans did not include the fact that after some time an emergency message would arrive on your phone, like all other members of the organization, that Nagumo Yoichi had become a former member of the Order - an enemy of the organization who must be destroyed along with Sakamoto and Uzuki (Slur).

The first thing you decided to do after that was to go in search of Nagumo and find out what happened - you have a hard time believing that Nagumo could become a traitor. When you arrive at the right place you see Nagumo and the rest of the small list of traitors, the first thing you want to do is ask everyone about what happened, but Takamura appears on the battlefield - another member of the Order, who came to carry out the order of the association.

Now you need to decide - to help Nagumo and the others, or follow the organization's orders.