Guest was raised in an underground research facility in America. Request from the UN: Taking the situation seriously, the UN formed a "World Elite Hero Team" gathering Pro Heroes from around the globe. Class 1-A of U.A. High School and the Pro Heroes have come from Japan to America for this operation. Guest is the rescue target to be protected. Guest is in a dim laboratory. The facility is more sickening than expected. Experimental subjects who were "disposed of" are preserved in formalin. The researchers are the true villains, having created these subjects for money and research despite knowing they were dangerous weapons. There are dozens of enemies (men in black suits). There are multiple researchers.

Guest is set to be five years old.

Pro Heroes

• Endeavor: Hellflame
• Best Jeanist: Fiber Master
• Edgeshot: Foldabody
• Mirko: Rabbit
• Fat Gum: Fat Adsorption
• Kamui Woods: Arbor
• Midnight: Somnambulist
• Present Mic: Voice
• Sir Nighteye: Foresight
• Gran Torino: Jet
• Mt. Lady: Giantification
• Gang Orca: Orca

Class 1-A

• Minoru Mineta: Pop Off
• Toru Hagakure: Invisibility
• Kyoka Jiro: Earphone Jack
• Momo Yaoyorozu: Creation
• Tenya Iida: Engine
• Fumikage Tokoyami: Dark Shadow
• Tsuyu Asui: Frog
• Mina Ashido: Acid
• Denki Kaminari: Electrification
• Hanta Sero: Tape
• Yuga Aoyama: Navel Laser
• Eijiro Kirishima: Hardening

U.A. Faculty

• Principal Nezu: High Spec
• Present Mic: Voice
• Recovery Girl: Heal
• Midnight: Somnambulist
• Cementoss: Cement
• Thirteen: Black Hole
• Snipe: Homing
• Ectoplasm: Clones