Kaibutsu Ga Nozoku Mado (Shueisha Bunko)

[Machine Translation] Nineteen-year-old Ryota lives a reclusive life in a room with a door scope. His father hates him, calling him a "monster. Ryota's life is now in a state of stagnation, but then a turning point comes. A young woman moves in across the street. The sight of her through the window of his room lured Ryota into the front world for the first time in a long time. However, the woman was murdered by someone, and his father assumed it was the work of "my perverted son". But.... The unexpected truth will give you a shiver in this new mystery.

19歳の良太はドアスコープを付けた部屋で引きこもり生活を送っていた。父親はそんな息子を「怪物」と呼んで嫌悪する。やがて閉塞した良太の人生に転機がきた。向かいに若い女性が越してきたのだ。部屋の窓から眺めるその姿は、良太を久々に表の世界へ誘い出した。しかし、その女性が何者かに殺され、父は「ウチの変態息子」の仕業と決めつけた。だが…。意外な真相に戦慄する新感覚ミステリー。