Due to my father's misfortune, I ended up returning to our hometown with Saika, where our reclusive younger brother lives. My brother doesn't work and spends all his time playing games. On top of that, he peeks at Saika in the bath and goes through her underwear. To keep Saika from worrying, I started being stricter with my brother from that day on. A few days later, I noticed something strange about their behavior, which gave me an uneasy feeling, but I tried to dismiss it as mere anxiety. Until I saw the wall of Saika's photos in my brother's room—
