The evolution of form began, and the Four-armed Corpse let out a deep roar. Then its already enormous body underwent violent changes.
The bulky figure became even more robust; the muscles gradually took on a dark red color, the skin membrane toughened, its eyes turned a ferocious scarlet, and its mouth unexpectedly sprouted spider-like chelicerae on either side, fierce and terrifying.
Its lower body was dramatically deformed; from the waist down, the skeleton melted, and the flesh collapsed, turning into a dark red meaty mass.
Enveloped by the red glow, the meaty mass continually changed shape, growing larger and larger, bones fermenting within, and then one by one, black spider legs began to emerge, sharp as spears and hard as steel. In the blink of an eye, the lower half of the Four-armed Corpse transformed into a pitch-black spider's body.