Last we saw our brave and fishy friends...

Nin, Cherri, Siren and Fen, our four little adventurers accompanied by a ball of light named Iggy, explore a vast world beneath their own. Growing up in a life of grey and boringness, a life of colourless Fading, the five of them delve underground to a flooded planet of colour and mystery. Currently riding the back of a massive whale-like creature, they head towards a giant building along the horizon, one that is seemingly guarded by a... giant robot?!

What awaits them within the guarded facility?