Many years ago, a huge catastrophe occurred on the planet. The few survivors managed to move to the skies and populate the strange floating islands. Years passed, the memory of what happened was erased. Moreover, now people are threatened with a new attack that can destroy the remnants of civilization - monsters, sowing destruction and death around them. Darth, a boy who has tried to put his own past out of his head, dreams of becoming a full-fledged Monster Hunter. But one day the past reminds itself of itself with a mysterious message from a long-lost father. The choice is not easy: continue to pursue your dream or give up everything and follow the message, become an outcast and reveal the darkest secrets of the floating islands.