Western Zhou or Spring and Autumn Period

If one day you are told that you are about to travel through time, and are given five million and a magical storage ring, and are also told that the time flow rate in the two worlds is different, about twenty times different, that is, a hundred years have passed in that world, and only five years have passed in the world you are in. By the way, when you die in that world, you will return to this world, provided that you die well. There will be a lot of benefits after coming back~ How do you choose? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.