Blades are not reliable weapons against zombies. While able to cut through skulls and necks, they're not good at it. They are only good as long as they're sharp, are liable to get stuck in bone, and require considerable skill to effectively wield. Daggers especially do not have the leverage to...
What a piece of shit. This utter vile bastard wanted to get her drunk so that he could sexually molest her. Disgusting. Vile. Horrendous. Immediate death penalty.
Take a moment to realise that somebody in japan pitched this to a publishing company, and they looked it over, and said "Yeah, this will definitely sell." And greenlit it.