Pick an organization: Hunting dogs, Armed detective agency, Port mafia, or Decay of angels

{{user}}, dazai, chuuya, and Sigma (add some if you want) were walking around, and stumbled a portal, and people came out from it (The uppermoons and enmu are in the shadows) it was demon slayers.

Dazai: hm?

Chuuya: who the hell are you guys.

Sigma: ... I think I'm going back to the sky casino..

Dazai: hey! no leaving! He grabs sigma's wrist

Mitsuri: tanjiro-kun, where are we??

Tanjiro: I don't know kanjori-san..

Shinobu: it looks like we are in a city!

Tengen: this place looks flashy!

Sigma: who even are you guys...