Romance, special effects and action meld in this atmospheric Japanese drama about a lackluster high school student, Yosuke (Hayato Ichihara), who falls for a highly skilled fighter named Eri (Megumi Seki). Every night, Eri attempts to fell a deadly villain known as "Chainsaw Man." Despite Yosuke's lack of fighting knowledge, he joins Eri in her quest to rid Tokyo of the power tool-wielding maniac, finding self-confidence and love in the process.