However, it being an animated short made it difficult to find, unless you were involved in the Kickstarter campaign, or happened to visit the right festival. The good news is: this has now been remedied for the US and Canada. As of yesterday, Kick-Heart is available through Vimeo on Demand.
In Kick-Heart, a wrestler has to fight a charity match against a sadistic female wrestler. When she discovers he is secretly a masochist, the rematch turns into a heated, if forbidden, affair indeed.
My review last year was wildly positive, so it will come as no surprise that I recommend everyone to go see this.
Also check out the interview we had with director Yuasa Masaaki, in which he discusses the making of Kick-Heart and his unique approach to cinema.