You Mean This Guy?

Armored Gorilla lunges at Genos, who deflects the blow and spots a hulking figure closing on Saitama. That figure, Beast King, looms above the seated hero and praises Ground Dragon for having buried and pinned him. Genos tries to break away toward his mentor, but Armored Gorilla clamps down on his shoulder. Genos twists free, blasts the gorilla aside, and again bolts for Saitama, only to leap back when the machine slams down in front of him. As the gorilla claws its way out of the crater, Beast King fumes over a yawning Saitama, who finds the packed earth oddly cozy. When the beast threatens to gouge his eyes out, Saitama merely lifts himself free of the soil.

Enraged, Beast King attacks, and Saitama slips past each swing with almost lazy ease. One wild strike accidentally kills Slugerous and Frog Man, driving the creature into a frenzy. Saitama threads through the storm of blows and finishes Beast King with a rapid string of punches. Ground Dragon panics and tries to tunnel away, but Saitama appears above him and knocks him skyward out of the ground. Turning back, Saitama finds Genos standing over a beaten Armored Gorilla who refuses to explain the House of Evolution, insisting Beast King will end them both. Saitama silences that hope by producing Beast King's torn-out eye, and the gorilla relents, agreeing to reveal everything.

Saitama kills Beast King with a flurry of punches after the monster accidentally slays Slugerous and Frog Man. Ground Dragon is launched out of the earth and defeated. Genos overpowers Armored Gorilla, and once Saitama shows the gorilla Beast King's severed eye, the captive agrees to disclose the truth about the House of Evolution.

Part of the House of Evolution Arc, the chapter was gathered in Volume 1 and adapts webcomic Chapter 8. Its cover features Slugerous, Saitama, Frog Man, Genos, and Armored Gorilla, and its events appear in anime Episode 2.