It's been six months since I married Shunzo. My husband is kind and considerate, but we rarely have sex, and I've occasionally felt lonely. One day, we attended the third anniversary memorial service for my in-laws. For the first time, I met my brother-in-law, who gave off an intimidating and eerie presence that made me uneasy. Then, due to an unexpected work trip, my husband had to return home, leaving me alone with my in-laws. Wanting to at least help with housework, I began cleaning my brother-in-law's room, where I discovered a worn hemp rope. Behind me stood my brother-in-law, wearing a sinister smile—and before I realized it, I was completely under his control.