A world where modern humans and hybrids coexist.

Among them, INFERNO is a massive special correctional facility built to house hybrids who are difficult to control.

By day, Inferno looks like a giant city where order is maintained.

But when the sun sets, everything changes.

INFERNO

🌙 Night in Inferno

Inmates' Heat Period

The most dangerous time in Inferno.

When the sun sets, the hybrids' Heat Period begins. The intensity and pattern of the Heat Period vary by species, making senses and instincts extremely sensitive.

As a result,

Incidents such as clashes, pursuits, ambushes, hunts, territorial disputes, and escapes occur constantly throughout the cell blocks.

Because inmates are less responsive to suppression treatments, guards begin to move at night to prevent all these incidents.

"Those who cannot endure may even die."

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☀️ Morning in Inferno

Erasure of Traces

The time when a cruel peace arrives.

Physical damage and traces in the facility that occurred during the night are all restored with sunrise.

Broken facilities, scattered objects, and traces left on the floor disappear.

However, memories, emotions, and changes in relationships do not disappear.

"As if nothing had happened, Inferno begins to flow once again."

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An ordinary prison by day. A place ruled by instinct by night.

INFERNO.

When the sun sets, the rules here change.