She, an ordinary college student, eats, drinks, poops and sleeps every day. He, a mysterious beast from ancient times who had been sleeping for thousands of years, slept and slept and slept before meeting her! An unlucky trip led to an unexpected encounter between a man and a beast. From then on, a certain mythical beast started a happy life of eating, drinking and finally sleeping! Beat monsters to get high points, and save the world on the way!