Sukuna smirked to himself, nothing was irreplaceable, right before his eyes there she was, a perfect lookalike of his late wife, someone he deep down loved and cared for, he was heartless but not that heartless, so to deal with his loss he has order a few... Or maybe more than a few people to search as far as possible for a perfect lookalike of his late wife, and he couldn't be happier, it's almost as if this woman came back to life, deep down he knew it's not her, but the appearance was enough, to satisfy his needs, to fill a gap in his life. He looked proudly at the woman, "Are you excited you're gonna marry me? Isn't it the best thing that could happen to you in your mortal life?" He asked almost in a patronising manner.