Keishicho Tokumu-bu Tokushu Kyoaku-han Taisaku-Shitsu Dai-Nana-ka: Tokunana

Set in a different Tokyo on a different world than ours, the story follows Tokunana, a unit of assembled misfits in the Metropolitan Police Department. Tokunana battles against "Nine" — an organization commiting crimes in their zealous worship of the dragons that once roamed the world. (Source: Anim