Okay, let me see if I have this all straight... these guys have a classic combiner-mecha situation going on... this guy's just archetype mad scientist, love it... this is the sensible one, clearly. And this guy, despite being barely postpubescent, has the dubious distinction of being the planet's only super hero. 
Appearing in 1st story
Featured Characters:
- Shin Hayata (Possessed by Ultraman)
- Spider-Man (Miles Morales) (Main story and flashback)
Supporting Characters:
- Ultra Guard
- Mitsuhiro Ide
- Kiki Fuji
- Monster Attack Team
- Takeshi Kato
- Ippei Kato
- Fumio Kato
- Yuriko Kato
- Dan Moroboshi (Possessed by Ultraseven)
- Avengers (Main story and flashback)
- Iron Man (Tony Stark) (Main story and flashback)
- Wasp (Janet Van Dyne)
- Captain America (Sam Wilson)
- Captain Marvel (Carol Danvers)
- Spider-Man (Peter Parker)
Antagonists:
- Heralds of Galactus
- Unnamed Alien Zarab (First appearance) (Impersonates Spider-Man and Jack)
- Galactus (Galan of Taa) (Main story and flashback)
Other Characters:
- Fantastic Four (Only in flashback)
- Human Torch (Johnny Storm) (Only in flashback)
- Mr. Fantastic (Dr. Reed Richards) (Mentioned)
- United Science Patrol (Mentioned)
- Director Morheim (Mentioned)
- Chasm (Ben Reilly) (Mentioned)
- Ghost-Spider (Gwen Stacy) (Mentioned)
- Silk (Cindy Moon) (Mentioned)
- Spider-Boy (Bailey Briggs) (Mentioned)
- Araña (Anya Corazón) (Mentioned)
- Scarlet Spider (Kaine Parker) (Mentioned)
- Madame Web (Julia Carpenter) (Mentioned)
- Spider-Woman (Jessica Drew) (Mentioned)
- Doctor Octopus (Dr. Otto Octavius) (Mentioned)
- Spider-Man (Takuya Yamashiro) (Mentioned)
- Hulk (Dr. Bruce Banner) (Mentioned)
- Eledortus (First appearance)
- Terochilus (First appearance)
Races and Species:
- Alien Zarab (First appearance)
- Cosmic Beings (Main story and flashback)
- Humans (Main story and flashback)
- Pigeons (Only in flashback)
- Spiders (Mentioned)
- Ultras
- Robots
- Human-Kree Hybrids
- Androids (Mentioned)
- Kaiju
Locations:
- Multiverse (Main story and flashback)
- Marvel's Ultraman's Universe
- Earth-616 (Only in flashback)
- Earth (Only in flashback)
- United States of America (Only in flashback)
- New York (Only in flashback)
- New York City (Only in flashback)
- New York (Only in flashback)
- United States of America (Only in flashback)
- Hell (Invoked)
- Earth (Only in flashback)
Items:
- Power Cosmic
- Spider-Man's Suit and Web-Shooters (Main story and flashback)
- Iron Man Armor Model 70 (Main story and flashback)
- Fantastic Four Uniforms (Only in flashback)
- Beta Capsule
- Wasp's Suit and Bio-Synthetic Wings
- Captain America's Uniform, Shield and Wings
- Captain Marvel's Suit
Vehicles:
Synopsis for 1st story
- Synopsis not yet written
Solicit Synopsis
Spider-Man has disappeared from New York, an intergalactic invader has arrived on Ultraman’s doorstep, and the Kaiju of Earth are acting even more mysteriously than usual. This can only mean one thing: It’s time for Ultraman to meet the Avengers! But what cosmic threat is great enough to require a team-up of Marvel’s mightiest champions and Japan’s greatest hero? Find out as Shin meets Sam, Spacium Ray meets Repulsor Ray, and “THWIP!” meets “SHUWATCH!” – in the epic crossover event.
Notes
- This is the second crossover in which the Prime Marvel Universe's Galactus was transported to a different reality to devour that version's of Earth, which forced the heroes of both worlds to work together to stop him. The first one was Fortnite X Marvel - Nexus War: Thor #1.