Postpartum return to unprotected office lady, pervert, Kiritani Mari, SODx adult novel adaptation series xSODstar STAR-900

Her husband's company went bankrupt, and the working woman, who works outside the home to make ends meet, occasionally takes the train without a bra, only to be targeted by a legendary pervert! The pervert brings her pleasure that she hasn't felt in years, and even though she knows it's wrong, she still relies on the pervert to release her sexual desires!