Bye-byeYumika and Kanae await their train home after a day trip to the country, and decide to visit a nearby shopping plaza to pass the time. En route, they pass by a boy waving goodbye, repeatedly saying "Bye-bye". At the plaza, everyone waves to them, repeating "Bye-bye", which begins to perturb the girls. Kanae is overcome with fatigue, so they find a café, whose customers are waving goodbye through the window. Kanae feels like she is being forcibly possessed by an unknown force, and her friend tries in vain to call for help...