Prologue: Those high heels lay quietly in the hallway, a fatal temptation for me... 1: A beautiful neighbor moves in. My name is Chen Yufan. I've lived in this somewhat shabby apartment building for several years. The apartment across from mine had always been empty, and whenever I passed its tightly shut door, the hallway seemed especially lonely. That day, as usual, I dragged my exhausted body home from work. The setting sun tinted the hallway orange-red, lending a little warmth to what was otherwise an unremarkable space. When I reached my door, I suddenly noticed something placed outside the apartment across the hall...