Nanami and Airi are my childhood friends. I like both of them and I can't decide, so I'm already an adult when I realize it. At that time, a new law to combat the declining birthrate, "polygamy," is implemented! Thus, the three of us became husband and wife, but the two who were close fought over me, and a battle broke out over who will steal me away, even though we're married! Airi gives me a blowjob in secret, and I lie to Nanami and we take a bath together... It's a complicated love triangle, but because we're married, I can make babies and cum inside her as much as I want! Polygamy is a wonderful thing... Will it be the day when I can have a harem?