Chaos Sign-in for One Billion Years

Su Baiyi traveled through time, into chaos, bound to the daily sign-in system. And so… a billion years passed. Until one day, he was summoned by a young girl as a guardian spirit. The girl looked at Su Baiyi, a guardian spirit space larger than the world… and it was a mess. Inherited cultivation techniques? Just a few pieces of toilet paper were god-level cultivation techniques! Foundation-building elixir? Even the scraps were god-level elixirs! Wait… the senior's pet… a divine dragon?! A true phoenix?! And that monkey?…