lol, well, the best way for me to explain the goddess and master relationship is that of a mother and child.
the goddess helps look afta their master & in return the master does the goddess 'duties' on earth.
more info and such will b given in later chapters, but for now, thats the only way i cn describe it without giving to much away.
i hope that answers ur question about my story... if not i'll send u a more detailed explaination in private message.. is that kk??