The fate of the world and the Armed Detective Agency has been entrusted to young Aya, who must elude a fearsome enemy while bearing this burden on her shoulders...

Meanwhile, Meursault comes under assault from Gogol, who invites Dazai and Dostoyevsky to wager their lives in the ultimate escape game.

Dazai takes on the challenge with Sigma who accompanied Gogol, but Dostoyovsky gains an unexpected ally...!

The Armed Detective Agency VS the Hunting Dogs, and Dazai VS Dostoyevsky...

The curtain rises on the all-out battle!