Manga about senses? Might be talking about 'Sense'. Yeah, that one's by Shin'ichi Fukuda. Plot's wild: the world gets hit by a virus that kills everyone's sense of taste, smell, and sight, but then people start being born with these crazy super senses to compensate. The main dude, Yakumo Saitou, has this insane 'Absolute Sense' that's basically like a radar for everything, but it overloads him, so he's kind of a recluse living in a pitch-black room. He gets dragged into helping the government's 'Sensory Special Forces' to deal with criminals who've weaponized their own senses. The key characters are all defined by their specific overpowered senses—Yakumo, the sensory detective; Touko Kuroki, the agent who recruits him; and various antagonists like Kaoru, a kid with an amplified sense of hearing who gets manipulated. The manga's not just action; it really digs into what it means to be human when your perception of reality is completely different.
I liked how it uses the sensory premise to play with mystery and combat scenarios you just don't see elsewhere. The art does a good job of visualizing things like scent trails or sonic waves, which is neat. Some of the science is definitely hand-wavy, but the character dynamics between the cynical Yakumo and the more idealistic Touko keep it grounded. Honestly, the power scaling gets a bit ridiculous later on, but the early arcs are a blast.