sob yakuza interest rates. They're absolutely killer. I can totally ease it up if you want- like, drop the interest rate considerably- especially since it's such a large amount of money. He can also freeze the interest rate at some point down the line too, in the spirit of generosity!

BUT YEAH. He'll be expecting money repayments: it doesn't have to be all within six months, but whenever you're ready for it or if Mr. Gold starts to fall behind he'll start piling on the pressure to get the money in.