Chapter 152: Toxic Substance

Garou and Bomb trade blows on even footing. Fubuki tries to back Bomb against the Hero Hunter but cannot track their speed, and when Garou lunges at her, Bomb blocks the strike and knocks him away to keep her safe before charging after him. Pig God appears beside Fubuki and spots the badly wounded Tanktop Master, and Fubuki asks him to help heal the hero.

Nearby, the other heroes and the Council of Swordmasters keep cutting down Black Sperm duplicates. A huge clone erupts from the ground to crush Tatsumaki, but Genos incinerates it and frees her. When another slams him down, his suit's burial-escape function, built from data gathered fighting Tatsumaki, lets him rise at once, and the two ready themselves against Black Sperm. Fuhrer Ugly then storms in demanding Silver Fang, whom he blames for his ruined body. Mocked by Black Sperm, he melts several clones with spat acid. Superalloy Darkshine's Superalloy Double Bazooka is neutralized by Fuhrer Ugly's Forearm Melting Punch, and acid begins eating the monster's own hands before he sears Darkshine's chest and drops him writhing.

Zanbai warns the others never to face Fuhrer Ugly unarmed yet charges with a sword, which melts on contact; a spat of acid then bores through his head and kills him. Horrified, Atomic Samurai and Nichirin unleash Atomic Slash and Iai Rahu-Ashura Slash together, but both blades dissolve against the monster's flesh, leaving him unhurt. Elsewhere Garou keeps pressing Bomb, who wonders whether the youth's rapid growth stems from monsterization. Refusing to yield until Bang arrives, Bomb readies a hidden strike and cracks the ground to unbalance Garou, only for Garou to counter flawlessly and drop him with one hit. Bang reaches the scene as his brother falls and is warned of Garou's staggering progress, but stays resolved to face his old disciple.

Fubuki cannot keep pace with the Garou versus Bomb duel and is protected by Bomb. Pig God is asked to help heal Tanktop Master. Genos rescues Tatsumaki and recovers instantly using his new burial-escape feature. Fuhrer Ugly's acid overpowers Superalloy Darkshine, kills Zanbai, and dissolves the blades of Atomic Samurai and Nichirin. Garou defeats Bomb with a single counter, and Bang arrives to take his place.

The chapter appears in Volume 30 and draws partially on Chapter 71 of the webcomic, part of the Monster Association Arc. A volume bonus page depicts Tatsumaki kneeling elegantly on a rock. The cover features Tatsumaki, Saitama, Blast, Flashy Flash, and Manako. It was released on June 15, 2021.