let me summon
@Sudsy who has previously posted links to very good information and links regarding age of consent issues in Japan (unless my memory is playing tricks on me...again).
Awww... thanks for the vote of confidence, WW.
https://www.quora.com/Why-is-the-age-of-consent-so-low-in-Japan This is what I found...other sites seem to agree that if you are over 20 and she is 18-19 it can be a grey area as she is still considered a juvenile...as a foreigner, no way I am taking any risks...
That quora article was written by a first year university student.... at a particularly shitty university to boot. And looking at the date, looks like it was written while they were still in high school.
There's nothing at all grey about it. The age of sexual consent is 18 in all prefectures. The national AoC is 13 (with a provision that the two must be in a committed relationship with an intent of eventual marriage) but it's trumped by prefetuctural ordnances nationwide.
The voting age was lowered to 18 a couple of years ago. 18-19 year olds can also sign financial and labour contracts, but their legal guardians can nullify them if the contracted arrangements are exploitative. Persons under 20 still require parental consent to get married, though.
I've read the full age of consent in Japan is 20. For a 19 year old seeing an above 20 the older guy could be in trouble if the parents did not approve (which they obviously wouldnt, if they found out).
That's the full age of majority, not age of consent. Turning 20 means they can get married without parental permission, and legally drink alcohol or smoke tobacco. Their parents can't do anything about their romantic relationships aside from decline to allow them to marry. They could sue the suitor, but they wouldn't get anywhere with it aside from causing the fellow to incur some legal bills.
Can any one shed some light on the Japanese '3-tier' age of consent laws? What is the worst that can happen? Deportation? Prison? Telling the wife?
There's no three tiered law. There's the national law at 13 with caveats, and the various prefectural laws that set it at 18. If the lady in question is over 18, nothing at all, aside from the possibility of your wife finding out. It's perfectly legal. Hell, an 18 year old can legally work as an escort providing her services directly, or in any legal sex work shop, such as a delivery health or soapland.
Here's a listing of all the openly advertised 18-19 year olds working in fuzoku around Kanto.
If you're talking about someone
under 18, that's a whole different ball of wax. The penalties vary from prefecture to prefecture, but they are criminal charges, and as such carry a risk of deportation and prison, particularly if there was a financial exchange.
I guess I really just have to walk away from this, but she is so cute and so up-for-it
And legally, not at all problematic. Go for it.
Edit: Should add - in theory the one thing parents of an 18-19 year old CAN do is have someone charged with abduction if you take them out of town or keep them out overnight. In practice, the cops will laugh this cases off. Only becomes serious is the girl actually moves in with you.