Right. So I did curse Haku's new pair of daggers in
this log. This post is here for future reference.
The daggers, as Arwen-san described them: "They were about a foot long, the blade flexable but strong. The hilts were a dark wood polished into a satin sheen." When Haku deemed them fit for his use after testing them, he felt a sharp burn in both palms.
What I've worked out so far is that the daggers will take partial control of his hands when he uses them so that his cuts and slices go deeper than he intended them to. While he's holding them, he will also think that he has no choice other than to fight with them instead of his usual arsenal. Hmm, might add a few more things later...
Yeah. That's it for now. ^_^
ETA: Might give Haku nightmares about an alternate and truly emotionless Haku.