DASS-127 Raped my stepmother while my father was on a business trip

My father is scheduled to go on a long-term business trip next week for business-related work, and my mother's "Kana" is very sad because of the business trip, but her son's "Tadashi" always anticipates the timing. This. "But", who had long been aware that her mother was of the opposite sex, enjoyed her life alone by peeping at her mother's naked body and voyeuristically. Tadashi sneaked a look at his lonely mother crying in the middle of the night and decided to seriously support Kana like a man.