Yahiro "Snake Hands" Mizuchi
About
Age: 14-15
Eye colour: dark brown
Hair colour: black
Relatives : Togusa Saburo
As a child, he was treated as a monster. After hearing about the "Headless Rider, (Celty Sturluson)" and the monster in human form Shizuo Heiwajima, he moved from Akita to Ikebukuro in hopes of seeing it.
In Durarara!! SH, it's revealed that he's the only one who could put so many scars and injuries on Shizuo Heiwajima.