Tomorrow is my son's Kendo tournament day. Every day, I was looking forward to going with my husband to see the sunny appearance of my son who practiced hard every day. However, the night before...I got an email from a man who was having an affair I met at a part-time job. The result of Tengu's desire to support his son and the desire to meet him. I pretended to be in bed with an illness and refused my son's support, so I invited him to my home alone.