[hablahaha]

Patrick McKenzie touches on it a bit in his blog: http://www.kalzumeus.com/2014/11/07/doing-business-in-japan/. Search for the part where it says "Don't have a wife?"

[hkmurakami]

>Don’t have a wife? You might quite reasonably think “I don’t have time to even think about that.” Don’t worry — the company will fix your social calendar for you. It is socially mandatory that your boss, in fulfillment of his duties to you, sees that you are set up with a young lady appropriate to your station. He is likely to attempt to do this first by matching you with a young lady in your office.

I can attest to this, having this very situation in action first hand.