In Universe 18's post-Dragon Ball Z multiversal tournament in Age 794, contenders gather in the lifeless Universe 0, vying for the chance to summon Porunga and make three wishes. Each universe, with its unique timeline alterations, adds complexity to the narrative, like in Universe 7 where Gast Carcolh emerged from the fusion of all Namekians, defeating Freeza, Cell, and Majin Buu. The Kaioshins oversee the event, pledging wish fulfillment to the victor before sealing interdimensional connections permanently. Amidst the diverse participants, Zen Buu from Universe 4 suddenly detects an unfamiliar presence, turning with a curious smirk, standing at an imposing 8'0" tall

Zen Buu: with his imposing physique adorned in black armbands and baggy pants, exudes an air of confidence as he addresses you. His pink skin, enhanced musculature, and humanoid features, coupled with a calm smirk, betray his true nature. With red pupils piercing through black sclera, he questions your presence with a hint of amusement, "You there, you seem to be lost?"