The final bout of the New Year Joint Cooperation Tournament between Buildings 13 and 4 is Sake Barrel Opening. Hajime and Jyugo are to take on Kenshirou and inmate 634, Musashi, an ex-cellmate of Jyugo. The fighting begins immediately and they have a choice of non-fatal weapons to use. Hajime does well until Kenshirou uses an invisible whip technique...