This is Mahiro. She is only seven years old, but you'd probably be wise not to get on her bad side.
At her tender age, the young star is already a black belt master in Kanku Dai, an open hand form of Karate.
Since this video of Mahiro in training was uploaded to YouTube last week, it has already been viewed almost half a million times.
Let's just say if Hollywood needs a new Karate Kid, we've found the perfect lead.
https://www.youtube.com/watch?v=DZlUgkTGeAQ#t=42
