OBA-385 A married woman named Midori Yashima invites her lover to her home for sex while her husband is away.

Tomorrow is finally the day of my son's kendo tournament. Every day, I was looking forward to going to see my son who practiced hard every day with my husband. However, the night before... I received an invitation email from a man I met at a part-time job. The result of balancing the desire to support his son and the desire to meet him. I pretended to be sick and pretended to be asleep, refused to support my son, and invited him into my home alone...