Based on the game by Buruge on Demand (label of Blue Gale).

Naoto, a young guy with a thing for busty women, and he is the luckiest man in the world:

Ayane, a busty babe he's known for all his life, has a thing for him and lets him have sex with her anytime he wants, and to spice it up, Chika, another one of his booby childhood friends, has just a big a crush on him too. When she says to him, "My breasts belong only to you," there's no way any guy would resist. There's now only two things that will be hard Naoto's life, one of them is choosing between two gorgeous booby hotties!