A fearsome seven-year-old girl shows off her black belt karate skills in a new video, which has even got grown-men shaking in their boots.
The young Japanese martial arts star called Mahiro, is seen in the clip practicing a technical sequence of moves involving hand chops, punches, high kicks and loud screams.
One male viewer wrote after watching the pint-sized warrior in action, 'It's terrifying to know a seven-year-old could be so good at karate,' while another humorously added,
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