Borrowing money from parents to finish paying loan abroad for property abroad

Hello, fellow Redditors, throwaway account just because, as the title sums it up, that's my doubt.

I acquired this property back home when I arrived in Japan 4 years and 9 months ago, made a huge downpayment with some economies I had, and kept paying monthly for more than 2 and a half years small monthly payments for the downpayment.

The project was still on the blueprint, therefore it took a while to get finished and I ended up making the loan for the remaining value around April 2022, when the property was finally delivered by the developer company.

My mother proposed to borrow me the money to pay for this loan in advance, the tax rate where I come from is around 13% a year, and the remaining balance to be paid is around 40% of the property value in the contract I signed back in the day. She claims I can pay her throughout the years in small monthly payments, she doesn't like the idea that I'm paying such a tax rate on the loan while she has the money saved and doesn't bother lending me as long as I pay her back.

My question is, if I make this loan and never remit any of the money to Japan, just directly to the bank I own the loan back home to get done with the loan, will this trigger any taxation here in Japan?

Thanks in advance

EDIT FOR CLARITY**: Since my info was kind of vague I should mention that I am on a spouse of national visa, I may or may not take the PR, I don't have plans to bury my bones in Japan, have two kids 4 and 2 years old born in Japan.