L’épée sacrée du royaume des Dieux

Goku begins training Goten and Trunks in the difficult art of Fusion. Gohan is healed in Supreme Kai's world, and tries to remove the legendary Z Sword, which can be used to fight Majin Buu. All the while, Babidi and Buu continue terrorizing innocents to "smoke out" Piccolo, Goten, and Trunks!

(Source : Kitsu.)