I have a sister who is not related by blood. A sister who is not related by blood, brought by her parent's remarriage partner. My sister never left the house. They are so-called hikikomori. "I want to see my little sister being fucked by another man..." Such a distorted delusion of mine accelerates... A desire set by a brother who has a desire to be taken down. It was to shoot the SEX of my beloved sister.