Underrated character duo is Dazai and Ranpo. I'm obsessed with how their intelligence is written. They're like polar opposites of each other. Ranpo basically sees everything at once. He knows what the puzzle looks like while everyone else is still trying to piece it together. Dazai is extremely observant and has a distinct understanding of people in particular.
Dazai uses what he knows about people to get the information he wants. He won't see the full picture immediately, but he has several times in the show used the tiniest clues given to him by people to deduce what it is. Much like Mori, he is able to put people exactly where he needs them to be. He also as a sixth sense on how to best support his partners because of this. He's smart on his own but I firmly believe that most of his manipulate genius lies in what he observes in those around him. For this reason, he is susceptible to being tricked and harmed because people cannot always be predicted or trusted. On top of that, he does not always want to believe in what he's seeing.
Ranpo lacks an understanding in people and seems a bit detached from people in general. When he's younger, we find out that he truly does not understand why people act the way that they do. His intelligence is completely independent of those around him. He just sees things. It's all seemingly mapped out for him at just a glance. Even Dazai admits that Ranpo is on a different level entirely. Despite this, he lacks common sense. I'm personally not unconvinced it because he enjoys the affection of having people tend to him since he seemed to have a rough life before Fukuzawa got him. Ranpo is the stereotypical anime genius. He seems to fail the most when people have gone out of their way to trick him, or "alter up the big picture" so to speak.
I know these things have probably been said before, but I really do think it's beautiful that our socially unadjusted geniuses compliment each other in this small way. They don't interact one on one often but the ADA really lucked out having these two in one company. I hope in the future we could see them interact more regularly as well.










