Chapter 140

Memories of a springtime transfer open the chapter. Newly arrived as a third grader, Tamaki Amajiki botches his self-introduction, then fails to slip into any of the groups that form once the opening ceremony ends, convinced that nothing about him is worth another student's time. Mirio Togata breaks the silence by correctly guessing what the anxious boy was struggling to say: that he admires heroes.

In the present the Police Force resolve to push past the heroes who were dropped below them, and Joi Irinaka peels off to handle the officers on the surface. Down in the corridor the operation's director identifies Toya Setsuno, whose Larceny can strip a gun out of a shooter's grip. Shota Aizawa cancels it, but Yu Hojo produces a weapon regardless, drawing pistols from the police while Fat Gum calls for a surrender. Tamaki ends the standoff by arriving inside a manifested clamshell, catching Setsuno, Hojo, and Soramitsu Tabe in octopus tentacles, and slamming all three to the floor. A manifested crab claw crushes the guns and swords he takes off them.

Reading the trio as a stalling tactic meant to buy the ringleaders time to escape with Eri, Tamaki tells the raid party to keep moving. Eijiro Kirishima objects, yet Tamaki insists a hero of Shota's caliber is needed further in, reassures Fat Gum, and asks the others to watch over Mirio, who never knows when to stop pushing. Aizawa suppresses the three Quirks before leaving. Above ground the departing heroes debate the choice, though Fat Gum has no doubts about a student who climbed into the Big Three under that kind of pressure.

Left alone, Tamaki tries to put the yakuza to sleep and cuts himself on a blade hidden inside Setsuno's mask. Erasure lapses; Hojo sprouts crystals and tears free, Setsuno steals the clam husk out of a block, and a crystallized punch lands. The Bullets explain that society threw them away and Overhaul salvaged them from the refuse and made them useful again, a debt Hojo means to repay. A second flashback recalls Quirk Education class, where Tamaki could only sprout a tiny plant on his palm and Mirio could only phase his hands through a wall to laughter from classmates, and the walk home where Mirio credited his own stubbornness to Tamaki's example and promised his friend would outshine the sun. Steadied by that memory, Tamaki catches Hojo's fist with reinforced crab claw fingers and tells the three to quit, because his name is Suneater.

Tamaki's school days and the start of his friendship with Mirio Togata are shown for the first time, including the moment Mirio coined the name Suneater.

Suneater elects to stay behind and occupy Setsuno, Hojo, and Tabe so everyone else can advance toward Overhaul.

Once Erasure wears off, the three Bullets reveal Larceny and Crystallize, wound Tamaki, and lay out their loyalty to Kai Chisaki for taking them in.

Titled Suneater of the Big Three, the installment ran on June 5, 2017 in issue 27 of that year and collects into volume 16 at nineteen pages. Its content is adapted in Episode 71.

Suneater shares the cover with Fat Gum, Red Riot, Setsuno, Hojo, and Tabe. Quirks appearing include Mimicry, Erasure, Manifest, Crystallize, Larceny, plus Rewind and Permeation by mention or flashback. Eraser Goggles and the Capturing Weapon feature among the equipment.

The chapter continues the Shie Hassaikai Raid and opens the fight between Suneater and the three Bullets. In his author comment, Horikoshi mentions that borrowed Ghibli films were being screened at work, with Spirited Away that week.