Talk:Dullahan/@comment-70.192.152.162-20150605051025/@comment-12776-20150606033840

Ah, you're right. Guess my browser messed up then, sorry.

Well, I guess that from meta-sense, it just isn't fun thing to include. Notice that much of "weakness" among the monster girls are either drive them crazy with lust, or leave them weaken so the man can violate them instead? Dullahan already has head-knocking to invoke the first one, while the second one would make them too unreliable as Demon Realm's knights.

That's my speculation. You have to ask Kenkou himself for actual reason.