In Slavic Pagan mythology, a rusalka is a water nymph. It is translated in many of the romance languages simply as "mermaid".
There are many variations of the myth, but in general, the story goes like this: a young woman dies near a body of water and comes back in "mermaid" form to haunt this sacred body of water where she died. She haunts this place with one goal in mind: to seduce young men by using her other-worldly looks. Once the young men become enamored with her, she entangles their feet within her long red hair and drowns them.
This is a very beautiful and haunting fragrance, so it was only fitting that it get a nautical name. The top notes are coconut, peach, and pineapple, with hints of jasmine and black patchouli.