My father's misfortune led me to go back to my parents' house with Ayaka, where my younger brother is in a shut-in. He is the younger brother who doesn't even work and is a gaming buff. He also peers over Ayaka's bath and looks for her underwear. From that day on, I tried to treat Ayaka stricter than my younger brother. A few days later, I realized that what was going on between them was wrong, and I felt a strange heartache, but I believed that such anxiety was a bit of a shame. Until I saw a photo of Ayaka all over my younger brother's room...