I left Tokyo, where I was born and raised, to marry and move to a port town, but soon after we got married, my husband went on a long business trip and I began a lonely life alone. I have never met my father-in-law, who is a fisherman, and tonight he will be returning from tuna fishing for the first time in three months. I made dinner and waited for him to come home, but there was no sign of him coming home, so I decided to go to sleep first. A few hours later, I woke up with a sudden sensation of slugs crawling all over my body, and my father-in-law, with a grin on his face, raped me in the middle of the night...