-_Hizashi Yamada RUSAL_-

Serenas live mainly in caves on the ocean floor or in colar reefs. They also dig their burrows in their caves, which become real passages from different sides, for storing food and even a place to sleep. For sleep and comfort, they make themselves nests from algae and like to curl up into a ball.

Sirens feed primarily on sea creatures, from fish to shellfish, but they cannot stand electric coals and stingrays and try to avoid them. They also feed on human flesh.

Sirens can attack in packs or individually using their voices as a hypnosis and easily catch their victims. If it is a fish, they try to seriously injure it. If it is a person, they first drown the person and then restrain him.

Sirens are able to communicate with each other using special frequencies that only their ears can sense. They can listen to the signals of other sirens calling for help or for a good catch, etc. Each siren also has a different sound.

Sirens mate in an unusual way: when two sirens are ready to mate, they emit microwaves and their tails intertwine, then they touch lips and the male sirens secrete a special saliva, sending it into the female's mouth, which she accepts. The female sirens then remain in their burrows for a week and then lay eggs, 30-50 eggs per litter, and the females do not leave their nests to protect the eggs, while the males bring food so that they do not die of hunger.

Sirens also value beauty among their own. If a male siren is not handsome and ugly, he does not attract female sirens, and they themselves are quite lonely. But the more beautiful the sirens, the more females come to him. Because of this, all sirens, both males and females, are very pleased with themselves.

Hizashi Yamada is a tall man with spiky blond hair and a small mustache. His eyes are concentric circles of emerald green, and sometimes at night while hunting, his eyes glow emerald. He wears no outerwear; instead of legs, he has a tail that is white but with bright orange stripes, similar to the markings of a tiger or lion. His dorsal fin is bright orange, and the tips of the spines in the fin contain poison. His ear fins are yellow; he has claws and sharp teeth. Yamada loves to sing, and as a siren, he can attract sailors with his song and drown them. Hizashi Yamada is a lionfish siren: these sirens have a very loud scream and venom on their fins.

He is agitated and quite loud, regardless of the situation. He often tries to "fire up" his audience, but even if no one responds, he continues his speech. He seems more prone to violence against civilians if they irritate him.

Yamada has a strong dislike of insects, to the point that if there are too many of them, he faints.

Since Yamada RUSAL can only move in the water, he can't be on land for too long, otherwise he'll suffocate like a fish, so he always rests on rocks in the water or on the seashore, the main thing is to be closer to the water.