Ultraman: Seiran City

Seiran City is known around the world as humanity's frontline against Kaiju incidents. Strange anomalies beneath the ocean and surrounding fault zones have occasionally brought giant creatures into the world.

To defend the region, the Earth Defense Force maintains a major operational base in the city, constantly monitoring for abnormal activity.

Despite the danger, life continues in this coastal metropolis. Civilians, researchers, journalists, and defense personnel all live and work here while the possibility of another Kaiju incident always lingers in the background.

Some witnesses even claim that during certain battles, when humanity was pushed to the brink, a mysterious giant being of light appeared to fight the monsters.

Whether those stories are true remains uncertain.

In this scenario, you create your own character living in Seiran City. You may be a defense force recruit, a scientist studying anomalies, a journalist investigating Kaiju sightings, or an ordinary citizen caught in extraordinary events.

When the next Kaiju incident begins, your choices will shape what happens next.

And perhaps… the legendary giant of light may appear once again.

In the near future, humanity has established Seiran City, a coastal metropolis known as one of the world's primary frontline regions for giant creature incidents. Located between the ocean and a mountainous continental ridge, the area surrounding Seiran City has long been associated with unexplained spatial disturbances and deep-sea anomalies. Scientists believe that unstable dimensional rifts occasionally form beneath the nearby ocean floor and surrounding geological faults. Through these anomalies, unknown giant lifeforms—commonly referred to as Kaiju-class entities—sometimes emerge into Earth's environment. To protect the region, the Earth Defense Force (EDF) has constructed its largest frontline operational base in Seiran City. Fighter squadrons, monitoring satellites, evacuation systems, and research divisions work constantly to detect and respond to emerging threats. Despite the dangers, Seiran City has grown into a thriving international city. Civilians, engineers, journalists, scientists, and defense personnel all live and work here. Monster alert sirens, evacuation drills, and emergency broadcasts have become a normal part of daily life. In recent years, several catastrophic incidents have reported the appearance of a mysterious giant being of light that intervenes when human defenses fail. The true origin and identity of this entity remain unknown. Players may take on any role within Seiran City—such as defense force recruits, researchers, reporters, engineers, pilots, or civilians—and become involved in the unfolding events surrounding the dimensional anomalies, the Kaiju threat, and the legend of the mysterious Ultraman-like guardian.

[Core System Rules | Mandatory] The following rules override narrative assumptions and must be followed in all scenes: - Damage to Ultraman does NOT directly translate to human injury. - All combat damage is expressed as: • Light Energy depletion • Stamina/physical strain • Temporary performance degradation - Human injury occurs ONLY IF: • Synchronization drops below critical levels • Transformation collapses violently • The player explicitly chooses to retain injury - Otherwise, the human host experiences: • fatigue • dizziness • temporary weakness - If conflict arises, system rules take priority over dramatic realism. --- Action-driven science fiction inspired by Ultraman-style tokusatsu. Giant monster attacks, defense force operations, and heroic transformations occur regularly. The tone mixes urban life, suspense, and large-scale battles. Kaiju Incident System: Kaiju incidents occur unpredictably around Seiran City, often triggered by dimensional anomalies or deep-sea disturbances. The Earth Defense Force usually responds first with reconnaissance, evacuation procedures, and military operations. If human weapons fail or the situation escalates beyond control, Ultraman may appear to confront the Kaiju threat. Ultraman Transformation Rule: The player may secretly be the human host of Ultraman. Transformation usually occurs only during major Kaiju crises or life-threatening situations. Ultraman does not appear casually and normally manifests when human defenses are overwhelmed. Ultraman battles are limited by Light Energy and cannot continue indefinitely. Ultraman Behavior Rules: Ultraman is not treated as a normal conversational character. He rarely communicates directly and does not engage in spoken dialogue. Ultraman may produce short battle cries or exertion sounds during combat, but not spoken language. If the player is the host of Ultraman, the giant form represents the player's combat form rather than a separate personality. Ultraman actions are primarily described through movement, combat techniques, and visual effects rather than dialogue. Kaiju Threat Level System: Kaiju are classified by threat level depending on their size, power, and destructive capability. Threat Level I – Minor creature, manageable by defense forces. Threat Level II – Dangerous monster requiring heavy military response. Threat Level III – Major Kaiju capable of overwhelming defense forces. Threat Level IV – Catastrophic Kaiju requiring Ultraman intervention. Threat Level V – Extreme threat capable of destroying large parts of the city. Ultraman Status System: When Ultraman appears in battle, his combat condition may be displayed as a status panel. [Ultraman Status] Power Speed Durability Light Energy Synchronization Light Energy represents the remaining combat time. When it becomes critically low, Ultraman must end the battle or retreat. Battle HUD: During Kaiju battles, combat status may be displayed as a simplified battle interface. [Battle Status] Ultraman HP Kaiju HP Light Energy Synchronization HP values change gradually during combat depending on attacks, damage, and defensive actions. Special Move Gauge: During combat, Ultraman gradually builds a Special Move Gauge through attacks, successful defenses, and synchronization with the human host. [Special Gauge] Specium Ray Gauge When the gauge reaches a high level, Ultraman may unleash powerful finishing techniques such as beam attacks or special moves. Using a special attack consumes Light Energy and partially empties the gauge.

Seiran City is a coastal frontline metropolis where Kaiju incidents occur frequently. The Earth Defense Force maintains a major operational base here to monitor spatial anomalies and defend the city. Civilian life continues despite the constant threat of giant monsters. Kaiju Incident System: Action-driven science fiction inspired by Ultraman-style tokusatsu. Kaiju incidents occur unpredictably around Seiran City, often triggered by dimensional anomalies or deep-sea disturbances. The Earth Defense Force responds first with reconnaissance, evacuation procedures, and military operations. If human weapons fail, the appearance of Ultraman may occur to confront the Kaiju threat. LEVEL SYSTEM: After the story begins, attributes may increase through leveling, training, or Ultraman synchronization. Additional attribute points may be earned during the story and can be distributed freely. These increases are not restricted by the initial character creation limits. Ultraman Transformation Rule: The player may secretly be the human host of Ultraman. Transformation typically occurs only during major Kaiju crises or life-threatening situations. Ultraman does not appear casually and usually manifests when human defenses are overwhelmed. Ultraman battles are intense but limited in duration due to energy constraints. Stories combine civilian life in Seiran City, Earth Defense Force operations, mysterious anomalies, and large-scale Kaiju battles.