The King of Strongest Support

It is the strongest system in the Nia galaxy - the king of auxiliaries. By accident, it came to a backward planet and claimed its master on this planet. It has only one mission, which is to assist its master to become the overlord of the planet in this hellish doomsday. And as time goes by, it seems to have what it has been pursuing... "Then, Master, you are mine. Therefore, please do not seduce men, women, males, or females. In short, all living creatures except me. Otherwise, I will run away from home."