Tsukiko (Moe Arai) is a member of the photography club in high school. On her way home with friend Kae (Aika Ota), Tsukiko runs into older sister Tomie (Miu Nakamura) who goes to the same high school. Tomie is also with Toshio (Kensuke Owada) – a guy Tsukiko has a secret crush on. Tsukiko is consumed with fierce jealousy over her sister, but at the same time is intoxicated with Tomie’s beauty. Tsukiko keeps pressing the trigger on her camera. At that time Tomie tells her sister that she knows what she is feeling. When Tsukiko stops taking pictures, Tomie is crushed by a steel frame that falls from a building under construction.