Okay, I had previously given this story 3 stars, but I'm amending that decision. Yes, the one guy is a cheater, and yes, the other one is completely manipulative, but there's something about this story that is extremely compelling. I've reread this story and the sequel half a dozen times. It isn't squishy or sweet, but there's a realism to it that squishy, sweet stories typically lack.
Kyuuso Ha Cheese no Yume Omiru