Making a Network Share connecting 2 routers

I have mycloud ex2 ultra with me. How do i connect ipv6 between 2 routers with different ip address? My goal is to have a Network Sharing Storage between two different routers connected into two different computers.
Maybe you guys have solution that works.

You may want to ask your question in the subforum dedicated to your device.

OS5 My Cloud EX Series

You may want to provide more information on the router and network setup since that’s what your question really addresses rather than a specific issue with the My Cloud EX2 Ultra. Are the routers on the same local network or are you trying to connect a local network router to a remote network router?