About 9 Months before Sachio Birth :
Parents (praying before doing the deed) : Please, Kami-sama... Bless us with a son with an incommensurable rizz so that the bloodline is assured for the next upcoming generations... and if possibly, make it especially effective against heiresses of wealthy influential families, so that he never have to worry about money ever again, as well !!
Kami-sama : That's strangely specific, but okay... beside, it's not like Heiresses are running around anyways, right !? ... Right ?
(I gotchu, brah.)