Parasyte -the maxim- — Story Arcs & Filler Guide
Episode ranges, plot summaries, and frequently asked questions for every major arc in Parasyte -the maxim-. Updated 2026.
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Migi Introduction & Mother's Death
Eps 1–7 · 7 epsHow does Parasyte -the maxim- begin?
Episodes 1-7 introduce high schooler Shinichi Izumi, whose right hand is taken over by a parasitic alien organism he names Migi after it fails to reach his brain. The two form an uneasy partnership to survive, escalating when a parasite kills and impersonates Shinichi's mother, shattering his sense of safety.
Kana Arc
Eps 8–12 · 5 epsWhat happens in the Kana arc?
Episodes 8-12 follow classmate Kana Kimishima, who senses that something is deeply wrong with Shinichi as his personality grows colder and more analytical from constant exposure to Migi. The arc ends tragically with Kana's death, forcing Shinichi to confront how much of his humanity he has already lost.
Tamura Reiko Arc
Eps 13–18 · 6 epsWho is Tamura Reiko and what is her arc about?
Episodes 13-18 center on Tamura Reiko, the series' most intelligent parasite, who studies human society and philosophy while investigating Shinichi's unique hybrid nature. Her arc explores the show's central question of coexistence between parasites and humans before ending in her death.
Gotou & the Finale
Eps 19–24 · 6 epsHow does Parasyte -the maxim- conclude?
Episodes 19-24 escalate into open conflict as a city extermination squad hunts the parasites, introducing Gotou — a composite of five parasites merged into a single, near-unstoppable body. The final episodes bring Shinichi's arc full circle, resolving his fractured humanity and his bond with Migi.