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For now, since the concept is undefined, I've created descriptions as if these were warriors of the Lotus Empire.
1. Naga
"In the Lotus Empire, these creatures are known as Ja-ko – 'Children of the Serpent.'
They are not born as such, but become them by voluntarily choosing the path of serving the deep-sea shrines."
2. Naga Samurai
"The Naga Samurai are veterans who have earned their title in the crucible of endless battles.
They are recognized masters of war, whose right to leadership and honorable armor is forged in their own blood.
This is the most respected caste of warriors, as their power is based not on a random gift, but on iron discipline, unwavering will, and years of grueling training, which has brought their mastery of four swords to absolute perfection."
3. Kabukimono. I took the liberty of renaming it Ryu-kei.
"When great misfortune befalls the shores of Ashan, the Daimyo of Sanctuary can summon Ryu-kei.
They emerge from the water silently, with only a quiet hiss, which frightens enemies more than a battle cry.
They are considered holy martyrs: they have given up their form and peace to become perfect assassins in the service of Shalassa."
And the story of the Serpent-like beings:
In the Lotus Empire, there are monasteries located at the very bottom of the oceanic trenches, where the water pressure is incredible. Nagas, striving for high enlightenment, go there on pilgrimage.
Transformation: During years of meditation in the presence of the 'Tears of Ashan,' the warrior's body changes. To better control the elements, they grow a second pair of hands. And since they renounce human emotions in favor of the will of the Dragon, their face turns into a serpentine muzzle – a symbol of pure, primordial power of nature.
Status: They are considered 'living shrines.' They do not speak, only hiss, but their four blades move in perfect synchronicity, like the currents of the ocean.
**regarding your criticism**
**If you approve, I will upload the files.**
**UPD: I've attached the file.**