On the day without my parents, I was frustrated all day long until my sister and sperm died. Matsumoto Nanazane

After my parents went out on a trip, "Nanazane" was my favorite brother and two of them. I can't afford to study and exercise at all, even though I am an older brother. Nanami, who heals her brother with the boobs of an I-cup that grew quickly. "Oechan, are you feeling good with Nanami's oppy? You'll be boobs all day, and your brother's white!'