Not known to show much emotion, Machi seems to be one of the most cold members of the Genei Ryodan. The only person she has shown some feeling to was Kuroro. Hisoka seems to have an occasional interest with her, although it's hard to see whether it's genuine, given Hisoka's unpredictability. Machi also doesn't appear to be interested a single bit, spurning his advances on all occasions. Machi is one of the Genei Ryodan that originated from Ryuseigai.
Nen Ability: Machi's nen transforms into thin wispy-long threads in which she uses in a variety of ways, including seaming together old wounds to heal them, repairing back dislodged limbs (like what she did for Hisoka), and forming a noose that can strangle enemies with a tug. Her thread's strength is inversely proportional to the length. The longer the thread she makes, the easier it is to break.