Dangerous Sisters Observation Diary ~ My Younger Sisters Are Trying to Push Me Down ~

Summer vacation. The four sisters of the Kamuro family are about to experience an extremely indulgent summer. Rui (瑠衣), the eldest daughter of the Kamuro family, is a devastatingly beautiful girl. She's a university student who is a bit of a scatterbrain... but a big sister who loves her younger sisters dearly. However, while she's sleeping, her younger sisters do whatever they want to her. And no wonder—her younger sisters love their older sister desperately as well. In this summer when lust knows no bounds, what will become of Rui's chastity!? We will also be posting this on Nocturne Novels.