MIAA-146 When I saw my sister being raped by my mother's remarried client, I couldn't help but get up.

After the mother remarried her stepfather told her to take her panties off naked under the pretext of educating her sister, and I couldn't help her because I had no courage? Because I wanted to see my sick stepfather attacking my sister, peeking at my stepfather's climax, and I grew depressed, and I wanted to invade her, and you wanted to do it, too, after what my father didn't expect me to do to the resistance sister.