Chapter 13

At five to eight on a Wednesday, Kamui Woods and Mt. Lady are losing. The villain in front of them, Trapezius Headgear, has an innocent family in his grip and more than enough strength to keep both pros at bay. All Might barrels through, ends the fight in a single instant with Missouri Smash, and the family walks away unhurt. The two heroes thank him, and he is gone almost immediately, due at U.A.

By ten to one that afternoon, Shota Aizawa tells Class 1-A that their Foundational Skill of Heroics period is given over to the Trial of Rescue. A bus carries them to the Unforeseen Simulation Joint, a training ground built to reproduce any accident or catastrophe imaginable. Thirteen, the Space Hero who specializes in disaster relief and shares teaching duty for the session, addresses the students about turning their Quirks toward protecting human life.

The speech ends and Aizawa spots a black portal tearing open. Villains spill through it by the dozen. He barks at his students to cluster together, hands their safety to Thirteen and readies himself for combat. One of the intruders complains that the timetable they lifted a day earlier had promised them All Might, which tells Aizawa exactly who broke into U.A. Another sounds let down that the man is missing, and wonders aloud whether killing the children would be enough to summon him.

All Might exhausts his time limit handling rescues on the way to U.A., which is why he misses his lesson with Class 1-A.

Class 1-A travels to the Unforeseen Simulation Joint for rescue training under Aizawa and Thirteen.

A large group of villains breaches U.A.'s advanced security and warps into the facility, opening the U.S.J. Incident.

Kohei Horikoshi's thirteenth chapter was published October 6, 2014 in issue 45 of that year, runs nineteen pages, and appears in volume 2 as part of the U.S.J. arc. All Might and Trapezius Headgear share the cover, with a sketch version included.

Four villains debut here: Invisible Wall, Stitched Giant, Trapezius Headgear and Needle Hair. The anime splits the chapter, with Episode 9 covering pages 1 to 17 and Episode 10 taking pages 18 and 19.

Missouri Smash and the Warp Gate Quirk make their first appearances, alongside Hardening, Arbor, Earphone Jack and One For All, plus the Eraser Goggles and Aizawa's Capturing Weapon. The opening fight is catalogued as Kamui Woods, Mt. Lady and All Might versus Habit Headgear, and both the U.S.J. and the Teachers Lounge debut as locations.