Exclusive 3rd bullet! Kiho Ichinomiya drama for the first time! My house had no electricity or gas, so I decided to live at her house. She has a younger sister, and I met her for the first time, but she seems to be wary of me. That night, she refused to have sex with me, and when I was masturbating, I was seen by her sister! Because my little sister seems to be vulnerable to pushing, maybe I'm going to do this... I secretly fucked my sister for a week without telling her. Little sister's temptation is escalating...