Dies Irae (2017) — AI Story Visualization

Plot Analysis Summary

The season moves from a personal nightmare mystery to a citywide magical conspiracy, then to a holy war over the creation of a new world.

Story Structure — 5 Plot Phases

Season 1: Return and Nightmares

The protagonist returns from the hospital and is drawn into a sword exhibition visit. Nightly nightmares and headless corpses establish the central mystery.

Key Events

• Hospital Discharge — A young man is discharged from the hospital and leaves before his friend arrives. His friend catches up with him and takes him to a sword exhibition. Location: Hospital
• Sword Exhibition Confrontation — The protagonist is forced to confront his fear of knives during a visit to a sword exhibition. Location: Sword exhibition
• Nightmare Murders — The protagonist is tormented by dreams each night while headless corpses continue to appear. The possibility that he is responsible becomes a central mystery. Location: City
• New Students Questioned — The protagonist confronts one of a group of new students and asks what they want. A girl begins to display signs of supernatural ability. Location: School

Season 1: Supernatural Escalation

Suspicious new students and emerging supernatural abilities expand the mystery. The Black Round Table is exposed, and the protagonist receives instruction in using his powers.

Key Events

• Black Round Table Revealed — The plans of the Black Round Table are revealed. One of its members teaches the protagonist how to use his powers. Location: City
• Friend Kidnapped — The protagonist is immediately forced to test his newly acquired strength when a member of the Black Round Table kidnaps his friend. Location: City
• Mysterious Blonde Arrival — The protagonist wakes up beside a mysterious blonde girl. He and his friend take her through the city, buy her clothes, and go shopping. Location: Protagonist's home

Season 1: Captivity and Conspiracy

A friend is kidnapped, a mysterious blonde girl appears, and the protagonist reunites with an old friend. A bridge battle ends with the appearance of the organization's terrifying leader and the protagonist's capture.

Key Events

• Old Friend Reunion — The protagonist meets an old friend after the strange arrival of the blonde girl. Location: City
• Bridge Battle — The protagonist battles enemies on a bridge and temporarily gains the upper hand. A terrifying leader then appears. Location: Bridge
• Captivity and Revelation — The protagonist is captured by the Black Round Table and learns who they are and what they want. Location: Black Round Table base
• Eight Swastikas Prepared — The organization begins putting its plan into action by preparing to open eight swastikas across the city. Location: City

Season 1: Swastika Offensive

The organization prepares to open eight swastikas across the city and targets a hospital. The conflict over the Fifth Swastika shows that the plan depends on strict obedience to orders.

Key Events

• Hospital Under Threat — The Black Round Table targets the hospital where the protagonist's friend is being kept. The protagonist must try to protect her. Location: Hospital
• Fifth Swastika Conflict — A member of the organization plans to open the Fifth Swastika while two opponents attempt to stop her. Another follower acts according to her orders. Location: Fifth swastika
• The Immortal Toy — An investigator speaks with the mastermind behind the city's events. The mastermind reveals that the investigator was manipulated into becoming immortal and a toy of God. Location: Unknown meeting place

Season 1: Valhalla and the New World

The mastermind's manipulation, the hidden level of magic, and the Grail's powers are revealed. A holy war begins, leading to the final battle and a gathering to determine the law of the new world.

Key Events

• Hidden Magic Revealed — The leader's plan and the highest hidden level of magic are revealed. The Grail's origin and powers are also explained. Location: Unknown magical domain
• Holy War Begins — The leader begins a holy war and puts a plan to transform the world into Valhalla into action. Location: Valhalla
• Surviving Lieutenants Defeated — Two opponents battle the surviving lieutenants of the Black Round Table while the leader departs to prepare for the final encounter. Location: Battlefield
• Final World Battle — The last battle against the leader and the Black Round Table reaches its conclusion, with the fate of the world in the balance. Location: Final battlefield
• Four Laws Gather — A new world is about to begin as four masters of Atziluth gather on the golden shore to decide whose law will reign. Location: Golden shore

Story Breakdown

• Return and Fear — The opening establishes the protagonist's hospital discharge, fear of knives, and return to ordinary surroundings.
  • Hospital Discharge — The protagonist leaves the hospital before his friend arrives.
  • Sword Exhibition — His friend makes him confront his fear of knives at a sword exhibition.
• Nightmare Mystery — Nightly dreams and headless corpses create uncertainty about the protagonist's involvement.
  • Recurring Dreams — The protagonist is tormented by dreams each night.
  • Headless Corpses — Another headless corpse is found after the recurring nightmares.
• Supernatural Awakening — Suspicious new students and emerging supernatural abilities widen the story beyond an ordinary murder mystery.
  • Student Confrontation — The protagonist questions one member of the group of new students.
  • Emerging Abilities — A girl begins to show signs of supernatural power.
• Black Round Table — The organization behind the events is exposed, and the protagonist is drawn into its power struggle.
  • Power Training — One organizational member teaches the protagonist how to use his powers.
  • Forced Captivity — The protagonist is captured and learns the organization's identity and aims.
• Citywide Ritual — The organization prepares a coordinated supernatural operation across the city.
  • Eight Swastikas — The organization prepares to open eight swastikas across the city.
  • Hospital Threat — The hospital where the protagonist's friend is kept becomes a target.
• Grail and Valhalla — The final arc explains the Grail and hidden magic before turning the conspiracy into a plan for world transformation.
  • Hidden Magic — The highest hidden level of magic and the leader's plan are revealed.
  • Grail Origins — The birth and powers of the Grail are disclosed.
  • Holy War — The leader begins a holy war to turn the world into Valhalla.
  • New World Law — Four masters gather to decide whose law shall govern the new world.

Key Cast

• Kohsuke Toriumi — Ren Fujii / Mercurius (voice)
• Asami Yaguchi — Young Ren Fujii / Eleonore Von Wittenburg (voice)
• Ayaka Fukuhara — Kasumi Ayase (voice)
• Hitomi Nabatame — Rea Himuro / Isaak (voice)
• Takeshi Maeda — Shiro Yusa (voice)