[Solved] conning, extortion and potential human trafficking legal advise

Hi everyone,
I'm currently going through a very tough moment. Before going to a lawyer, I'd like to get a feeling of how un/realistic my final goal is. I'll try to be brief as this story is very dramatic.

I'm an Italian male citizen, 34 years old.
My ex fiancee is a 34 year old Japanese woman.

We met in my country. She was travelling and studying (she applied for a student VISA). We started dating and we fell in love. Towards the end of her stay, we were discussing about our future and she said that she can go back to Japan, stop her job (which she said was an office desk job), stop the rent of her apartment, tell her parents about me, wait for 3 months (the time necessary in order to come back to Europe) together with her possessions and start living with me.

Halfway through the waiting time, (around a month and a half after she went back to Japan) I did a surprise visit to her in Japan, where I proposed to her and she said yes. I met her family, parents, grandparents, cousins. I stayed at her apartment during my stay in Japan.

When I stayed at her apartment, I noticed she had hundreds (I'm not exaggerating) of high brand bags, designer clothes, accessorries, namely GUCCI, CHANEL, YSL, HERMES with values going into millions of euro. In a nutshell, her apartment was like a '[censored] AND THE CITY' apartment. I was shocked to see that, especially since during our relationship in my country, she never hinted anything of the sort.
Innocently, I asked her from where did she get all these expensive items and she got angry, saying that she is NOT A PROSTITUTE and changing subject. Moreoever, she made me feel guilty by saying that I insulted her with my question, and that she will change her life by coming to my country, so I should be a little more nice with my words.
I was confused, because all I asked her was from where she got the branded goods. I NEVER judged her, because I was madly in love with her and I never had any suspicions about her during our relationship. She never cheated on me or went out with anyone else, as we were meeting every day after her school.
The argument ended there, as I reflected that night and I agreed that she will make an effort to start a new life in a new country, where she had only me, no friends, no family.

During my stay in Japan, I was also introduced to her friends, and all of them wore expensive brands, same (or more than her) making my ZARA suit look like TRASH compared to their Burberry blouses and Cartier bracelets.

During my 3month stay in Japan, I helped her pack and send around 28 cardboard boxes of her personal possessions to my place. Finally, together, we took the same airplane and came to my country, with her parents' blessing, Her parents made me promise them to take care of her and start a family as soon as possible, because of age (she was 33 years old at that time), stamina and life fulfillment.
I promised I will take care of her, as I have always done.

Around a month and a half after we started living in my country, we got the beautiful news that my ex fiancee was pregnant. My family was very happy!
I started planning to move to a bigger place, get a new car, as I was working very hard for my family.

A few weeks into the pregnancy, at around week 9, I took her to a regular ultrasound scan checkup, where we could hear the heartbeat and it was the most amazing moment of my life!
The next day, I had a full day business meeting (short notice) and I excused myself with my ex fiancee and that I need to be away all day the following day.
After I came back from the business meeting, my fiancee was gone. She wasn't there. I found a small letter saying that she is too stressed and she had to go back to Japan.

The world crumbled under my feet. I was shocked, devastated. My first reaction was to go to the airport and book the first flight to Japan (which I did).
When I arrived in Japan, she refused to meet me and after several attempts and messages, she agreed to come to the hotel I was staying.
She arrived at the hotel. We talked. She said that she ran away because she wanted to be taken care of by her mother and sister (since they have baby experience)
I couldn't understand her. Just because I didn't have any children before, she implied that I am unfit to support her pregnancy....
Anyways, at the end of the day (My flight back to my country was the following day) I asked her what will be of us.
She said that her parents want her to stay in Japan now. I said that this is unacceptable because we all agreed that she will live in Europe and all her clothes are at my place.
She said that if I paid monthly contributions to her, during her stay in Japan, her parents might let come to me.
The initial amount requested was €10,000
I immediately refused as I suddenly felt like the target of a big scam, feeling utterly disgusted and disappointed at the girl I loved and who is carrying my child.
I answered by saying that throughout our relationship, I paid for restaurants, hotels, holidays, rent and everything. She knows very well that I never let her pay anything. She never until that point, asked me for a handbag, an accessory, let alone money!! so I was feeling very strange and I immediately refused.
She became very angry and left the restaurant and I haven't seen her since then (that happened around a month ago)

I am back in my country. This girl (her family and her friends) blocked me, my friends and my family on all social media, with no way to access their profile accounts as they changed everything to private or very restricted.
My child is due to be born on 1st January 2019

I did some research about her through private investigators and to my biggest surprise, I learned that during 2011 until 2016, my ex fiancee was the biggest escort (hostess) in her city, having yakuza (local mafia) as her clients, as well as sumo wrestlers and people from the porn industry. Her salary was over €30k a month with fringe benefits exceeding €250k a month. I was also told that once she got a Lamborghini from one of her clients.

As I stand now, according to the Hague convention, I have no legal right on the child for several reasons.
However, what the private investigators have told me is that this girl is potentially working for the yakuza and her objective was to get pregnant with a European guy and go back to Japan with a child. This means, that there is a possibility that my child will be used for human trafficking, organ selling or something else.

My question to everyone out there is.
Is there something I can legally do ?
I'm afraid to go to Japan again, especially after I saw her intimate and disgusting photos with yakuza.
The local police told me that they don't have jurisdiction over Japan, so they need very strong evidence to extradite her to my country.

I have evidence of her possessions in my apartment, tons of messages during our relationship, her photos posing/working as an escort and her photos with yakuza, photos of her tattoos (both normal and intimate) receipts of all the things I paid for her, for the baby (in my country) and her message asking me for money in exchange to communication with me.

Thank you very much for reading.
Any help, idea, would be highly appreciated as I'm honestly lost.

Thanks a lot