It's been 15 years since we got married. My daughter is in college and lives in a dormitory. However, I thought we contacted each other every day, and our family and marital relationships were good. ...But I received an email from my daughter saying she hasn't been able to contact her mother recently... Now that I think about it, things have been strange since I went to a reunion the other day. When I secretly peeked at my wife's smartphone, numbers were written on the calendar. A total of 125, but I didn't understand the meaning of the numbers. And by the time I understood the meaning of the numbers, it was already too late...