The reading is also an exception. It can be いき, but instead we're focusing on the ゆき reading. You have to remember the ゆ portion, so think of it this way:
Just think about the train direction that you (ゆ) need to go in. It's all about you. Not your friends or anyone else. You. You are the most important person at this train station.
One shinkansen ticket for Shin-Osaka, please.
I'm thinking of walking both ways.
This train is bound for Tofugu Office Station.