It is the Day of Ascension. Young Yuki is excited to journey to the Moon Temple for the first time and to finally pass the test that will decide his fate. He sets out with his family, but things do not go as planned and he accidentally unleashes powers that send him to a strange world.
Yuki finds himself on Gaia, a world at its turning point with their people more divided than ever. A division fueled by a mysterious hooded figure operating in the dark.
Now it is up to Yuki and his companion Buddy to reunite the people and save the world from repeating the mistakes of the past. On his path, Yuki will meet numerous people from Gaia, learn to understand them and discover the root of the issues as well as his own origins. But will he ever find his way home?