Talk:Monster Girl Quest: Paradox/@comment-5994448-20170323231207/@comment-24561308-20170324234216

^Pretty sure that this was hinted ever since Part 3. We know that Heinrich somehow "destroyed her love", which made her evil. And then in Paradox Part 1 trailer, we see Berserker Armor being physically close to BA, and now all this.

My theory being similar to those already stated. Heinrich and Black Alice being romantically involved, with an event ending up making those two enemies and making BA hate humanity.

If the rule about male stronger than Monster Lord was introduce after BA's reign, we can guess that it was related. Maybe that Heinrich almost died in sex, which turned him against her? (It is possible that he didn't even know she was the monster lord.)