Naoto, your run-of-the-mill young dude with a thing for top-heavy women, is the luckiest bum in the world. Ayane, a busty babe he's known for almost all his life, has a thing for him and lets him have his way with her anytime he wants. On top of that, Chika, another one of his chesty childhood friends, has just a big a crush on him too. When she says to him, "my boobs belong to you," there's no way any guy with a healthy sex drive can resist. There's now only two hard things in Naoto's life now, and one of them is choosing between two gorgeous hotties!