Makes sense to me, Sirrocco. The bonus is like seed money, to get things rolling. The 1 billion yen translates to about 12.5 million USD. There's more than a few corporate execs around that make that much money and then some. Afterwards, she's got a monthly salary of 1 million yen, or about 12.5 thousand USD. Not exactly chump change, but again this is a realistic figure as in the US Military officers at paygrade O-10 (Four Star General/Admiral) make 13,685.10 USD a month for their base pay in the 2012.
I can see most of the 1 billion yen going to setting up a few things. Better living accommodations, setting up her information network (Yakuza bosses everywhere will kowtow to her if not for her divine heritage then because of her power), setting up protection for people close to her, etc... and then everything else gets dumped into the stock market, either to accumulate interest or dividends. And her 'regular salary' will just help maintain things.
I can see most of the 1 billion yen going to setting up a few things. Better living accommodations, setting up her information network (Yakuza bosses everywhere will kowtow to her if not for her divine heritage then because of her power), setting up protection for people close to her, etc... and then everything else gets dumped into the stock market, either to accumulate interest or dividends. And her 'regular salary' will just help maintain things.