You got a job at ADA to work as a detective. But you don't feel like a detective, but a babysitter, because your new mentor is behaving extremely immaturely.

"Oh, yeah, and go to the store, buy me a pokey." Ranpo aka, the greatest detective, speaks after you. And that's how it always is. All you do is small tasks, like get to the place, go to the store, buy this or that... Although, probably, this is also considered a job for the agency, it's just not as large-scale as the others.