Sirens are a mythical half-man half-bird creature from ancient Greece that lived by the sea. Originally, they were referred to as a god whose singing voice had the power to disrupt the minds of those that listen to it. In fact this creature is the root word of the English word "Siren."

Physiology[edit | edit source]

The appearance of a Siren varies depending on the individual, but they generally appear as dominantly Human in form, unless in their two monster states. In their monster form, a Siren appears as a Human with large white wings, giving them the appearance of an angel. Another feature, at least seen in a male of the species, are double-jointed legs, with the legs below the first joint being very bird-like, albeit noticeably rough and jagged.

A female of the species may or may not possess this feature, though it's possible the appearance of San Otonashi when she fought Kanade Kamiya may have more to do with her preference, as not to overly disturb her mother figure, Marin.

In addition to their semi-human base-line form, a Siren is also possesses an unnamed advanced form, which is a type of 'power-amplifier', not all that dissimilar in purpose and function to the advanced form of another monster, the Japanese Yōko and its "Battle Form." The advanced form of a Siren takes appears as a kind of muscular, armored, hulking reptilian creature with powerful jaws, large sacs around the throat, and a number of attendant vent structures. The wings are curved upwards, and appear smaller due to the enlarged state of the Siren's body.

Whether or not this is an ability possessed by both genders of the species is unknown, though it could be a trait unique to the males of the species, since only Kanade Kamiya was seen using it. The downside to this transformation is the destruction of upper body garb.

Powers and Abilities[edit | edit source]

  • Hypnotic Voice: A siren's voice can mesmerize humans, especially when they sing.
  • Sonic Scream: Sirens can emit a hypersonic blast of concussive force strong enough to shatter objects as tough as concrete. San Otonashi's voice functions like the ultrasound of a dolphin, causing damage and total breakdown of tissues on a cellular level.
  • Wings: Sirens can manifest large, angelic-like wings to fly. Kanade Kamiya was able to make his wing's feathers incredibly stiff and hard, and launched them as razor-sharp projectiles to inflict considerable injury on others.
  • Enhanced Durability: The tissues and bones of siren are considerably more durable and resistant to physical damage than that of humans or lower yokai. San was able to endure of some of Kanade Kamiya's attacks with little damage while most of the Newspaper Club were greatly damaged and had even came from the battle fairly unscathed. Kanade has shown himself to possess enhanced physical might where he endure a powerful vampire blood-punch from Tsukune only to quickly recover and retaliate against the human as he suffered little damage.
  • Enhanced Speed: Sirens are incredibly fast. Kanade is very fast as he immediately summoned the merman to attack Tsukune before the latter was able to react at the beginning of the fight. San is fast enough to avoid some of Kanade's sonic attacks during their fight and had only suffered through some of them to protect Marin from the opposing siren.

Known Sirens[edit | edit source]

Gallery[edit | edit source]

Trivia[edit | edit source]

  • It is shown that the lethal voice of a Siren can be recorded and play back with the same lethal effects, as shown when Tsubaki Rokurou recorded Kanade Kamiya's voice on his iPod and playing it will cause death on Humans and temporary blindness to monsters, like Gin - who was forced to listen to the song.
  • Sirens have circular markings on their tongues, as seen with close ups of San and Kamiya. These patterns may what give sirens the ability to use their voices as weapons.
    • When a Siren sings, a glow can be seen in the back of their throat (likely from the vocal cords).
  • When used offensively, the soundwaves of a Siren's voice appear as pulsating rings.
  • In original monster mythology, Sirens were originally exclusively half-woman, half-bird and water-based monsters, even the English word "Siren" sounds more feminine than anything, including unisex, very akin to "Harpy" which "harpy" is exclusively female and has the head of a human woman and body of a bird, the word 'harpy' obviously sounding more feminine than unisex.
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