cosplay
This photo is cosplay of Rio from Spiral.
The explain of Rio from Wikipedia.
Rio Takeuchi
The "midget" of the Blade Children group, she resembles a 13 year old child rather than her actual age, 16. Rio is also the youngest of the Blade Children. Although Rio appears to be the most innocent of the Blade Children with her cherubic features and size, she is actually very shrewd and calculating. Rio knows how to create bombs, devise difficult plans and kill those she considers her enemies. She is extremely intelligent and is able to escape from any sticky situation, no matter how small or tight it is. She is very straight-forward and has a crush on Eyes because he gives her 'netted pattern' melons (her favorite food). Like Kousuke, she will not hesitate to kill people if she has to.
The path Rio takes is working in third-world countries, defusing land mines left over from war.