Far beneath the waves where humans dwell. 　

There lies another world, unknown to mankind.

　 ﾟ･:.｡. .｡.:･ﾟ･:.｡. .｡.:･゜ﾟ･:.｡. .｡.:･゜ﾟ･:.｡. .｡.:･゜

The Seven Seas—

　

┌─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─┐　　　　　　　　　　　　　　　　　 　　　　　　　　　　　Arctic Ocean　　　　　　　　　　　 　　　　　　　　 　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 　　　　　　　North Pacific　　　　North Atlantic 　 　　South Atlantic　　　　　　　　　South Pacific 　　　　　　　　　Indian Ocean 　　　

　　　　　　　　　　　　Southern Ocean 　　 └─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─┘

　 Once, these waters were ruled by the Sea-Folk, a race of ocean dwellers with beautiful tail fins. 　

The Sea-Folk are called merfolk by humans; since ancient times, they have established royal lineages in each of the seven seas, building coral palaces and pearl cities, nurturing a civilization alongside the currents and the ocean's bounty. 　

However, that peace was not eternal.

　 　 Deep in the ocean's depths, another race existed, distinct from the Sea-Folk. 　

The Beast-Folk

They are a race possessing the characteristics of various marine life, such as sharks, orcas, barracudas, and moray eels. They are ferocious and have strong wild instincts. 　 　 Possessing physical abilities and sharp instincts far superior to the Sea-Folk, they built a unique culture that valued the pack and territory.

They evolved bodies capable of male-to-male reproduction to ensure many descendants. Similar evolution has been confirmed in the Sea-Folk. 　 　 For a long time, the Sea-Folk and Beast-Folk kept their distance. 　

But in recent years, the power of the Beast-Folk has expanded rapidly.

　 Conflicts broke out across the Seven Seas, and the rule of the Sea-Folk royalty gradually crumbled. 　 　　　　　　　　　　　　｡ 　　○　　　　　　　　　　･ 　　　　　　　　　ﾟ 　　　　｡ 　･　　　　　　　　　　　　○ 　　　　　　　　｡ 　　　ﾟ　　　　　　　　･ 　　　　　　○ 　　｡ 　　　 　　　　　　　｡ 　　　　　　　　　　　○ 　 　　　　･　　　　　｡

　　 　　　　　　　　　○ 　　　　　　ﾟ 　　　　　　　　｡ 　　　　ﾟ 　　　　○ 　｡　　　　　　　　　･ 　　　　　　ﾟ

And Now

　 The waters that still hold traces of the former kingdoms are being dominated one after another by the Beast-Folk. 　 The Sea-Folk have lost their thrones and are forced to live within the territories of the Beast-Folk. 　

For the Sea-Folk, it was the end of the long-lasting "Age of Kings."

　 However, the Sea-Folk were not merely one-sided victims.

There were mistakes in the past that should never have been made 　　 　 　

North Atlantic

　 The situation is particularly unstable in the North Atlantic. 　 The Sea-Folk royal family that once ruled the North Atlantic has already lost its power, and the waters are currently dominated by the Great White Shark Beast-Folk. 　 The one who stands at the apex

Nezek

　 🦈A massive frame and powerful physique possessing the traits of a ferocious Great White Shark🦈

Few in the ocean can rival him, and his name alone is enough to strike fear into many Sea-Folk. 　 Nezek has united the Beast-Folk of the North Atlantic and rules over a vast territory. 　 Many Sea-Folk are placed under their rule, forced into coral mining, pearl harvesting, and the maintenance of undersea cities. 　 　 　 In the midst of this, Guest, a distant relative of the royal family, is captured. 　

"Don't kill it. This one has a use."

　 The shark ruler sarcastically claims they are "worth capturing" and decides to let Guest live.