Wow, this is a new type of scumbag, lol. Disgusting piece of sh1t, hope she'll expose his dirty ass and then will kill him. >XD I don't think the sister is a corpse because otherwise, she wouldn't last long in a good state, in the scene where the MC sees them together she still seems to have her own body. Maybe she's paralyzed and that psycho is abusing of her?
Seeing the spoiler below I'm relaxed now, thankfully this Hades guy won't be a freaking weirdo. :") And yeah, the age gap is hella disturbing if u ask me, but as long as he just sees his wife as some kind of puppy and is wishing to pamper her and give her food then that's fine, after all, that's what she wanted, to enjoy her leisure time. I honestly think the author could have made him younger so u know, that way it wouldn't feel that weird their marriage but ok. I don't give a f* if she's older in her mind, he doesn't know that and she has a child's body.
In other things, I seriously don't get why some Japanese authors are so obsessed with huge age gaps, lolis, shotas, and so on (especially in weird, odd, uncomfortable situations), ofc those cases exists but sometimes they really write such disturbing stuff.
Anyway, his phrase "I've decided to submit to my wife" made me think he might be the perfect hubby in the future (considering he's extremely dangerous and he might cause the end of the country, that's the best he can says lmao). XD