'Each planet is like a god,' the system explained, 'when planets form, they form conscious too. As soon as they are born, they will be like babies, like this planet.
As they grow, they will become like earth, then as they grow more they will become like planet where devil Yuki was born first. Then as they grow more, they will become like Rara.
As soon as planets are born, their first goal is to nourish themselves. As they are just born, they don't know how to harness cosmos energy well, so they try to harness energies from stars and matter from meteorites and stuff in space.
The planets will be very small when they are born, as they take in nourishments like meteorites and star energy they start to grow. Then they will find a solar system to start a life on them.
