Ayumi Nitta (Erika Toda) suffers from anthropophobia (extreme shyness & fear of people). She works as a janitor at a hospital. One evening, she has an one night stand with surgeon Wataru Makino (Tori Matsuzaka) who is addicted to sex. Ayumi later realizes she is now pregnant because of that one night stand. When she tells Wataru that she is pregnant, Wataru believes she is a making a bad April Fools joke as it is April 1st. Wataru Makino then takes flight attendant Reiko (Nanao) out to an Italian restaurant. He doesn't know that Ayumi Nitta is also going to the same restaurant.