Tập 3: Ayano suy ngẫm về quá khứ và nguồn gốc lý thuyết của cô ấy về hạnh phúc.

3

This song focuses on Ayano and her past. It starts off when Kido, Seto, and Kano are introduced to Ayano by her mother. They believe that they are monsters because of their red eyes, but Ayano cheers them up, by saying that red is the color of heroes. Ayano shows them a picture book of a hero story, while wearing a red scarf. Soon Ayano's mother dies due to an accident. Ayano tells herself that she has to be a good big sister and cheer her new siblings up. One day she sees her dad planning an experiment on her friends, Takane and Haruka. Devastated by this, she tries to save them by committing suicide, thus entering the Heat Haze. (Source: Kagerou Project Wikia)