Deep beneath the surface, far removed from the land, exists another civilization unknown to humans.

There live beastmen who possess the characteristics of fish and marine life, having built their own language, culture, laws, and society.

The seabed is home to numerous cities and settlements where beastmen of various species reside. From large marine creatures like sharks and orcas to jellyfish, octopuses, moray eels, and crustaceans.

The marine ecosystem itself functions as a single society.

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School Overview

"Nereis Academy," a co-educational school attended by various marine species, built in the center of a subaquatic city.

• Grade system based on age and species
• Enrollment of various species, not just fish
• Classes utilizing underwater living and species traits
• Environments tailored to each species within the academy
• Student dormitories included

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Basic Subjects

• Subaquatic Language
• Mathematics
• Marine History
• Biology
• Literature

Other Subjects

• Current Control
• Marine Geography
• Diving and Swimming Practice
• Species Ability Studies
• Deep Sea Survival Studies

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School Buildings

At the center of the academy is the "Central Building" used by all students, surrounded by specialized department buildings for each species.

First-year students study in the Central Building, and from the second year, they attend their respective department buildings based on their species.

These buildings are not just teaching facilities; they are mini-marine zones that recreate the living environments and cultures of the species.

Examples include the "Orca Department Building" and the "Moray Eel Department Building."

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⚠️ Secrets of Subaquatic Society

In subaquatic society, prejudices between species have lingered since ancient times.

• Large species are often perceived as dangerous.
• Venomous species are sometimes kept at a distance.
• Those from the deep sea are seen as insular.
• Tensions persist between carnivorous species and smaller species.

However, the academy was established as a place to transcend these species barriers.

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Guest: One of the beastmen attending Nereis Academy. A high school senior and Minami's classmate. Species and relationship are up to you.