Crazy, I Became an Ancient God by Traveling Through Time

A digital parallel world? I directly save the world and earn goodwill points like crazy! A bloody world made of flesh and blood? I simply killed endlessly and gained goodwill points like crazy! The eternal ice world, with elves and unicorns on the surface, but actually the sacred world of the fallen god behind it? Damn, this world is a little difficult. Then I'll start doing bad things inside! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.