Tidelanders

Tidelanders are a half-breed species that is the product of a union between a human male and a Siren. These beings possess superhuman abilities and are capable of living for hundreds of years.

Power

 * Immortality: due to the mermaid blood that runs through their veins, the aging process decreases massively once in adulthood. They keep a handsome appearance.
 * Underwater breathing: like their mother, they do not need to breath once underwater.
 * Hydrokinesis: the ability to move liquid by will. It is said that women are more proficient at this than men. They are "the worthy daughter of their mother".