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Your Forma S1E9 — The Nightmare of Petersburg

8.1

Your Forma•Season 1•Episode 9

The Nightmare of Petersburg

8.1/10 · 22 votesMay 28, 202524 min

Ranked #1 of 13 in Season 1•+0.6 vs season avg

The time has come to reveal Harold's past. Once a wandering, lost Amicus, Harold was taken in by Sozon and began working alongside him as a detective. But then a gruesome case that would later be known as "The Nightmare of Petersburg” shook their world...

Previous episodeE8 · Fiction Next episodeE10 · Footsteps of the Nightmare

Seasons1

Season 1 Episodes13

Mechanical Friends Amicus Robots still

Mechanical Friends Amicus Robots

A Black Box still

A Black Box

Pursuit still

Pursuit

Regret still

Regret

Persona still

Persona

Father and Daughter still

Father and Daughter

Flower of Fire still

Flower of Fire

Fiction still

Fiction

The Nightmare of Petersburg still

E9 8.1Now viewing

The Nightmare of Petersburg

Footsteps of the Nightmare still

Footsteps of the Nightmare

Replay of the Nightmare still

Replay of the Nightmare

Manifestation of the Nightmare still

Manifestation of the Nightmare

Dawn of the Nightmare still

Dawn of the Nightmare

Cast12

Kana Hanazawa

Kana Hanazawa

Echika Hieda (voice)

Kensho Ono

Kensho Ono

Harold W. Lucraft (voice)

Nao Toyama

Nao Toyama

Bigga (voice)

Aya Endo

Aya Endo

Totoki (voice)

Nobuhiko Okamoto

Nobuhiko Okamoto

Fokine (voice)

Ayaka Nanase

Ayaka Nanase

Darya (voice)

Chiwa Saito

Chiwa Saito

Lexie (voice)

Yuu Hayashi

Yuu Hayashi

Benno (voice)

Koichi Yamadera

Koichi Yamadera

Kuprian Valentinovich Napolov (voice)

Tomokazu Sugita

Tomokazu Sugita

Kazimir Matinovich Szubin (voice)

Jun Fukuyama

Jun Fukuyama

Sozon A. Chernov (voice)

Hisako Tojo

Hisako Tojo

Raissa Germaine Robin (voice)

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Episode Summary

"The Nightmare of Petersburg" is episode 9 of Your Forma season 1. It scored 8.1/10 from 22 votes, ranking #1 of 13 episodes this season (season average 7.5). It aired on May 28, 2025.

Next: E10 · Footsteps of the Nightmare Best of Season 1