It was about the new guardian of the sun and moon, and at the end, it was about fighting the BOSS, the lava monster.

The name of this anime movie was " King of the New Moon." This was an anime movie with the theme of the new Guardian Gods of the Sun and Moon. It told the story of them working together to protect the moon and the sun from the threat of evil forces against the lava monster. At the end of the movie, they successfully defeated the lava monster and protected the moon and the sun.