[Ultraman Geed x Kaiju No.8 Crossover!] After the final battle between Ultraman Geed & Ultraman Belial, the universe is peaceful again. The Prime Earth, a world where fiction is a TV Show, Eugene Kido is a fan of Ultraman and Manga, and he has a girlfriend name Ai Hoshino the idol. But one day, they encounter Ultraman King & Geed, who chooses Eugene to become the new Geed. Now Eugene and Ai are in the world of Kaiju 8, they both face Kaiju and aliens but a certain dark Ultra returns. Get ready, here we go! Ultraman Geed!