One day, college student Yuuhi Amamiya is approached by talking lizard Sir Noi Crezant. Crezant immediately launches into a fantastical story: the powerful mage Animus intends to destroy the earth with his biscuit hammer, a huge contraption looming high in earth's orbit. Earth's only hope lies with the princess and her Beast Knights, whose task is to protect the princess and defeat Animus.
