I had been married for three years and was living happily with Masashi. I wanted to have a child with him, and I was researching the best time to conceive. Today was that day... However, Masashi brought along his subordinate from his former workplace, Oki. When my plan failed, the next day, Oki called me to the hotel where I was staying. He said he had something to give me... And he came inside me on that day, which was my risky day. After that, Oki started coming to visit me, even though he knew it was my risky day...