Valkyrie Drive: Mermaid

Sixteen-year-old Mamori Tokonome is used to getting mocked at school because her last name can also mean "virgin." But soon, she’ll face teasing of a very different kind. During gym class, Mamori is kidnapped and wakes up stranded on the strange island of Mermaid, under attack with no way out. Fortunately, Mirei Shikishima, another mysterious castaway, knows how to help-by kissing Mamori, she triggers her Exter transformation, turning the shy redhead into a fierce warrior through the power of desire. The island is crawling with allies and enemies: Charlotte, a cruel collector of Exter girls; the sly and always-hungry Meifon; the enigmatic yet charming Akira Hiiragi; and the seductive biker pair, Lady Lady. To survive, Mamori and Mirei must rely on their intense, intimate bond-because in this wild place, passion is their only weapon.