This volume contains the following chapters:

1. Kaika Yohou (開花予報)
2. Tonari no Kirei na Okaa-san (隣の綺麗なお母さん)
3-4. Himitsu (秘密)
5. Imouto Seichou Nikki (いもうと成長日記)
6. Boku no Okashina Oba-san (僕のおかしなおばさん)
7. Bokutachi no Kirei (Bitch) na Okaa-san (僕達の綺麗（ビッチ）なお母さん)