All this time,. it wasn't Harada who hated Kuni but the Evil Translator dude.
When Liono mentions Kunimitsu the harada's translator immediately makes a
and when he "translates" it for harada you can clearly hear him say "SPAM" ... "Kunimitsu", and no other names after that.
he's probably providing harada with false information and lies.
I know this probably isn't true,.. but it still bugs me that when he's translating Liono's question about hidden characters *all the old ones (Kunimitsu, Ogre, Michelle, P-Jack) it only takes him a few words *containing Spam and Kunimitsu to explain it to harada.