JUY-723 The Married Woman Across the Hall: Nao Jinguji

A shut-in named Shinji spends his days watching the woman across the way. She is beautiful, and he fixates on her body, especially when she changes. He then realizes she is Nao, a classmate he admired in school, and his desire grows. When she returns his dropped shoes, she visits him, unaware of his obsession.