A cure for a certain disease. The side effect was to "forget" a certain person. Seto Yukiya is a man who has "forgotten" his ex-girlfriend. Mikoto Hayashi, a woman who has had a crush on Yukiya for many years, lies to him that she was his lover. Chisa Nagato, a wife who has "forgotten" the loss...
Newspaper reporter Machiko Iari meets middle-schooler Takashi Oka at a coin laundry she frequents. Gradually, Machiko begins to feel that Takashi has the same mood about him as Yoshiko, a close friend from her childhood days.
