I want to make sure I've got this right.  Did Saki marry him and adopt the kids for the money?  Did they ever love him?  I suppose you did warn us going in that this could happen, but the opening of the story painted such an idealic and hopeful life together.  It just seems needlessly cruel to the little guy.  For alot less money Saki could have adopted one kid, then send it to boarding school and promise a guy a million to marry and divorce her.  Instead she has to split the money 4 ways, doesn't stop her husband from breaking the bank on the wedding and then not at least paying off his debts and letting him go his merry way with just a broken heart.  I kind of hope its a prank.  They have a bit of fun, maybe go so far as putting him in their mouth at a tiny size and then let him off the hook.  Broken heart and humiliating death seems really cruel.