Anya and Valder are two siblings that possess the incredible ability to shapeshift! Given such a power, why shouldn't one use it to get an aesthetic fish tail for a couple hours and explore the sea like a mermaid?
Their basic appearance is human, but, yeah, sometimes they're mermaids! And sometimes they're creepy horses that look like they came straight out of Hell. Some change every now and then gives zest to life :)