I can already see whats going to happen, he's going to find a way to restore her sacrificed lifespan and also prevent her powers from taking any more, and thus she will be so thankful she'll become his waifu.
I STILL cannot take that lady seriously when her outfit is literally just what consists of underwear and a trench coat and a few belts that cover nothing. She's the only character dressed like that so it's especially jarring.