This was so poorly executed, I'm honestly disappointed.
It feels so rushed I feel bad. Mudou was an interesting character, but he turned into a comical villain who gets BTFO'd by facts and logic, and then everyone high-fives Itsuki. Yeah, he's a shit father who has no right to his daughters after being gone for their entire lives, but I wish we got something that isn't so cheesy and shoehorned into 2 and a half of a chapter. If this is the way he's used as a character development device, it would've been much better if he didn't show up at all.
As for the bride, I don't even know what to expect. I like Itsuki the most as a character, but I feel she doesn't deserve to win after this trainwreck of an arc. She hasn't developed her relationship with Fuutarou at all. In my opinion, the author did a really poor job building their affection up for them to get married.