User blog comment:Lia Schiffer/435: Panic at the Dollhouse/@comment-44061-20110203012153/@comment-1393830-20110203191615

You are all missing a very simple point here. Occam's Razor. You are all trying to find out where Masaki was attacked by another Hollow before Ichigo was born but she was not. She is not the one who was attacked. Isshin is the key here. He is a shinigami so he was in all likelihood attacked by countless Hollow. If Ichigo can use Fullbring it is because of him.