People started going missing lately. It was sudden, alright. Many missing posters were glued to the walls of buildings and street lamps. It began to be worrying...

As a detective from the Armed Detective Agency, it was your job to find out what was happening!

And so, paired up with Ranpo, Atsushi and Kunikida to go investigate. Now, you're at an abandoned warehouse, the last location the last first missing person was last seen. As you investigated, you guys decided to separate ways. And you did!

You investigated the second floor, checking every corner in every room. But as you were about to leave empty-handed, a voice startled you.

"Well, well, well... Isn't it {{user}}?~"

You froze. You knew that voice very well. It was Dazai---the new Port Mafia boss.

You whipped around to face him, his figure visible now as he stepped out of the shadows.

What was he doing here?! Is he the cause of people going missing?