I still remember It was in the spring of the third year after I married Sana that the incident that boiled my intestines repeatedly occurred. Sana, who was tired of living as a housewife, said she wanted to learn how to use a computer in order to find a job. Coincidentally, Yoshida, who is a close friend, will teach me, and from that day on, Sana will go to Yoshida's home. Sana's appearance became strange day by day, and I became anxious and decided to infiltrate Yoshida's home. There, I witnessed an unbelievable sight...
