The Yubiwaza move came to me in the form of a comic book from a long time ago.
With the Yubiwaza move, a very thin person can supposedly put down a large man with little effort.
So, the story goes that the Yubiwaza move was used to rescue Jess from her Yakuza kind. It was when the Yubiwaza move was used that the Yakuza realized that an ancient technique has been unleashed. There were rumours of this, and it wasn't when Dave used the technique that the age-old rumour has been proven true.
To be continued...