Steel Fist Riku

Steel Fist Riku (拳鋼少女リク) is a martial arts manga written and illustrated by Jyutaroh Nishino (弐篠 重太郎). In the United States, Canada and the United Kingdom is released by CMX.

Plot
Steel Fist Riku is set in a world where humans co-exist with half-human animals but otherwise is similar to the real world. A small village where Iwao Rokuhara, once a promising fighter, works in a movie photo store with an orphan girl which he took in and gave the name Riku, making her his pupil and (more or less) adopted daughter. Riku was born with the ability to make her left fist become steel.