Mr. A writes: "I'm a foreigner who has been married to a Japanese for more than 20 years. We bought a house in her name a few years ago, with a loan that's due after 30 years. Every month I pay half of the monthly installment.

"My question is, as our house is actually in her name, what if one day we divorce and she claims that the house belongs to her?

"Also, I'd like to know what kind of monetary claims I would be able to make in the event of a divorce. Please advise me."