It appears baby Bruce Lee have a new rival to contend with. Introducing Cute little Aikido Master!
From my understanding in Aikido, those who wears the Hakama (the long skirt looking uniform) is actually at a pretty high level, probably the equivalent of a blackbelt in karate.
Aikido practitioners should be able to verify to see if the adult isn't just allowing her to throw him around. Look closely you can see her footing and energy actually drives the adult to the floor. (non-believers gonna hate)
But it doesn't really matter because at the end of it she look so adorably cute when she was being fling around by the adult at the second half of the video.
'not recommended for untrained people to throw their siblings/daughters around without the propertraining'