AOZ-188 Targeting a female college student living alone in Tokyo for a home invasion rape

College girls who have moved from the countryside to the city. In a city where there is no interaction with neighbors, it's impossible to distinguish suspicious individuals or residents entering the same apartment building. They can't tell apart rapists disguised as delivery personnel. If they are followed from the nearest station and attacked the moment they open the door, they can't escape. Their cries for help are futilely drowned out by the city's noise.