Furachi

“I never imagined things would turn out like this…” Kai, who ended up spending an intimate night with a woman living in the apartment building next door, reflects on his actions. Taking advantage of the fact that a room in the neighboring building happened to be completely visible, he began spending his days soothing himself by watching Ikenaga—who was exposing her vulnerable self—through his lens. But one morning, he accidentally called out to her! From that moment on, a relationship with the woman he’d been spying on began to develop…?

(Source: Lune-soft, translated)