第 1 巻 (全 11 巻): だんちがい (Series) favorite_border

Haruki Nakano (Sr. 1), who lives in an apartment complex, has one older sister and three younger sisters.　The older sister, Yumezuki, shows her naked body in front of the younger brother, Haruki, saying, "Because we are siblings..." "Why are you hugging me, you stupid erotica!　What are you hugging me for, you stupid erotica! Yayoi blames her brother Haruki even though he did it himself.　The twin sisters, Hazuki and Sakizuki, toy with their brother.　--These siblings, four girls and one boy, live ...