even though Iori knows about Minami's history of receiving abuse, and even though the author fully intends to present it as a serious thing, it's played off so casually that Iori hits Minami when frustrated. I made it 65 chapters in without that being so much as acknowledged. Is it supposed to be funny? I really don't know what the author is getting at. Actually, I had a similar problem with Your Lie in April.