The story follows , a delinquent student at Nightingale Academy (or Uguisu School in some translations) who famously carries a massive, custom-made chainsaw wherever she goes. Her peaceful existence as a rule-breaker is shattered when she is targeted by a wave of "modified corpses"—ghoulish cyborg zombies created by her brilliant but unhinged classmate, Nero Aoi .

Driven by a mysterious grudge, Nero sends increasingly bizarre cybernetic assassins to kill Giko. This leads Giko on a blood-soaked path to Nero’s secret hideout, accompanied by her friends Asako Senzaki and Naglucifer. The "Revenge of Nero" segment is the first half of a two-part cinematic event, directly followed by Giko Awakens , which together form a singular, chaotic narrative arc.

Bloody Chainsaw Girl Returns: Revenge of Nero (2019) is a high-octane Japanese splatter film that serves as a reboot and reimagining of the original 2016 cult classic. Directed by , who returns to helm this new iteration, the film delivers a frantic blend of gore, absurd comedy, and schoolgirl delinquents armed with industrial-sized power tools. Plot Overview: Chainsaws vs. Cyborgs

Unlike the 2016 original, this 2019 reboot features a fresh, younger cast: Bloody Chainsaw Girl Returns: Revenge of Nero (2019) - IMDb