Any good YouTube or websites for beginner Japanese investors?

Apologies if this has been asked and answered already.

My wife hit me up at work the other night wanting to put some money into some investment thing that she learned about from a LINE group she is in. Obviously it put up so many red flags I quickly told her "absolutely not".

I've been trying to get her interested in investments for a while, if nothing else just to have an understanding of all my investments. 401K, IRA's, regular brokerage accounts. I follow all the boring rules that Bogle, Buffet and other long term investors have put out over the years. Hold for 10+ years, low fees, total stock market funds. I've avoided day trading and crypto.. just plain boring investments over the years. I've been doing pretty good and our retirement accounts are doing good.

I'm not against doing investments in Japan, but my work/life situation makes this not ideal for me. But I would be fine giving the wife some money to invest if she wants, I just want her to understand why investing off a LINE group is the worst thing she could probably do. So, I'm hoping someone knows some Japanese YouTubers that are good at explaining investing for beginners and what to avoid. Obviously ones that might have the same stratagies that I've been employing would be best, but not needed.

I'm not adverse to her investing in something that might have a bit more risk than what I would do, because it's not a retirement fund. And if we lose it all it wont hurt us financially. Just want her to do it as safely as possible through a regular investment company.

Thanks for any help in advance.

by fdokinawa