Lina Toin (sometimes spelled Rina) mermaid princess of the North Atlantic Ocean and owner of the Green Pearl. Lina is rather tomboyish(she even wears a boy uniform in school) , but she is very mature and like an older sister to Lucia and Hanon. In her mermaid and idol form, Lina appears as having long green hair ,and green eyes. In her human form she has semi-long green hair and grey eyes.