DAYD-006 My sister asked me to teach her. The dream-like seven days before I have sex with such a sister. Kominami Ran.

One day, I was asked by my sister Ran to teach me how to study. It’s been a long time since I’ve met her, but for a short while, I almost faint when I see her breasts peeking out from her defenseless chest… Yes, I’m her sister Ran. I got lustful! Even though I thought I shouldn’t. And so the dreamy 7 days began…