Shounen Aromatic

Page 53

Kabuki Takitsugu is a son from a family of the "Fragrance Way", who has the special ability to smell out human scents. A girl named Hatsune appears before Kabuki while he is making money on school grounds by matchmaking people. But for some reason he can't smell Hatsune's scent. - from Mangafox

Well I can certainly say that I have never read anything quite like this manga.  It is a unique storyline and a very good one at that.  Recommended!