At the Gate 49-75 end of Hongqiao there are two China Eastern MU lounges.
V5 the business class lounge and V4 an even more fancy version.

They are back to back and connected by a locked glass door.
V5 is a nice lounge with good hot food, but busy during delay times.
V4 is far quieter, better chairs, fancier looking, even with a smoking room.

But how to access V4?
Certainly my First Class MU ticket was not enough. The dragon said it was "VIP only".

Anyone know how to get on the V4 guest list?