OGPP-005 Kaori Otonashi, a wife who experienced an unbelievable event at her husband's home after returning home

…My mother passed away three years ago. - My brother lives alone at home. - The Otonashi couple returned to their hometown for the first time in about a year during winter vacation. - The older brother is happy to be back home after a long time, but he actually knows that his younger brother, Kenji, suffered from diabetes and ED when he was young. - The younger brother and his wife should not be doing their nightly activities...