Magic and Immortality

This is a magical world with a hodgepodge of dragons and demons, saints and demons, vampires, humans, dwarves, elves, orcs, winged men, murlocs and other races. Although it is said to be magic, it is actually normal for such things as magical omnics to exist. In short, this time the world needs to be exciting enough - the God of Creation. So the Creator God created gods to work for him. Now in the 1600th year of the Light Calendar, it is up to Rick, as the protagonist, to see what the world is like, right? (Harem, adventure)