＃JR Tokai ＃JR East ＃Ride train

When traveling by train from Shizuoka Station to Tokyo Station, I think most people use the Tokaido Shinkansen. I think the Tokaido Line is the orthodox way to travel if you are using a conventional line.

Either way, both the Tokaido Line and the Shinkansen travel to Tokyo Station via Kanagawa Prefecture, but what would happen if they could not pass through Kanagawa Prefecture?
I actually tried moving it.