C2274 It's a Very Surprising Thing

One day and one night.

When Yue Yi and the others arrived at the mark, they did indeed go through the Cave of Universe for a whole day and night.

In fact, there was still a huge difference between his First Universe and the other universes.

It was obvious from the size of the universe's exit.

Other universes were either the size of a basket, the size of a bottle, or the size of a door