Chapter 56

Standing over the dead winged Nomu, Stain repeats his purpose: counterfeit heroes and worthless criminals are what he means to sweep away, all for a more just world. Tomura Shigaraki watches from elsewhere, sour that nothing has broken his way. Endeavor arrives, spots the Hero Killer, and readies an attack until Gran Torino moves to stop him.

The bandaged mask slips from Stain's face, exposing the absence of a nose and unsettling everyone. Battered as he is, he steps forward, insists the fakes be corrected and the word hero reclaimed, and dares the pretenders to stop him. Only All Might, he announces, has earned the right to kill him. The bloody menace rolling off him drops one pro hero outright, buckles Shoto and Tenya, terrifies Izuku, tightens Gran Torino, and moves even Endeavor back a pace. Then the punctured lungs behind his broken ribs catch up with him and he goes under, still standing, which unnerves the onlookers more than the speech did.

The following day at Hosu General Hospital, the three students recover. Izuku works out that Stain spared them deliberately, since killing them was always within reach, and Shoto agrees. Shoto credits Tenya's courage with saving the day; Tenya turns the compliment down. Gran Torino and Manual then bring word of a visitor: Kenji Tsuragamae, a tall man with a dog's face who heads the Police Force.

Kenji reports that Stain is badly hurt but alive and under treatment, then walks the students through the reasoning behind hero licensing. Police declined to field Quirk users for fear of Quirks becoming weapons, so heroes rose to fill the gap under strict rules and morals, and trainees not yet ready for the role can hurt people if they act away from their guardians. Fighting the Hero Killer without supervisors still breaks the law, which puts the boys in line for punishment alongside their supervisors, Gran Torino, Endeavor, and Manual. Shoto snaps at the notion that they should have sat still while Tenya and Native died; Gran Torino and Tenya hold him back. Kenji clarifies that the punishment would follow an official disclosure, and with too few witnesses to force one, he intends to bury the incident, which costs the students any recognition for what they did. He admits plainly that he does not want them in trouble. The three thank him, and the chief bows and tells them their futures look promising.

Stain and the Nomu are taken into custody while Tomura Shigaraki and Kurogiri withdraw. Stain's final display of will ends only when his internal injuries knock him unconscious on his feet.

Tenya, Izuku, and Shoto recover at Hosu General Hospital, where Police Chief Kenji Tsuragamae informs them they broke the law by fighting without supervisors, then agrees to overlook it so long as the public never learns what happened.

Nineteen pages, printed in issue 40 of 2015 on August 31 and gathered into volume seven, with Stain and Tenya Ida on the cover. Onima, Kido, and Kenji Tsuragamae all debut.

The Hosu Incident concludes with this chapter. Hellflame, Decay, and Warp Gate appear, and the settings are Hosu City and Hosu General Hospital. The anime splits the material, with Episode 30 covering pages one through ten and Episode 31 taking the remainder. Horikoshi's comment recounts getting a mean friend request on Wii U and making a friend anyway.