Starting today, for three days, a stalker will be assigned to follow you. Told this, Yume Takeda parts ways with the staff at the station and returns to her normal daily life. The stalker is given a camera to record her actions and a duplicate key to her apartment. For these three days, she is free to act as she wishes, allowed to do anything under the given conditions. Three days later, the staff collects the records of what she has done and reviews her actions over the 72-hour period.