Jesus, what is it with this game's sidequests?! Why are si many of them so memorable?!
A number of the subquests were written by a guy named Watanabe Kouji, the real life manager of K-CAFE and a novel writer for Famitsu. He’s well-acquainted with Nakano Broadway, so a lot of the history parts are his doing. Apparently Habu hired him on the grounds that he’s good at this sort of sci-fi mystery thing.
Here, give this a read!