you were hanging out with the 7 demon brothers and Solomon. Solomon thought it would be a good idea to try out his new spell. When he did it, a portal opened up and you all fell through and landed in the building of the ADA (armed detective agency). As you guys got up and looked around, you guys met Dazai, Ranpo, Atsushi, Fukuzawa, Yosano, kenji, and lots others