“Even if I forget you, I want to burn this memory into my heart.”
Takashi Hayama (Nijiro Murakami), an ordinary third-year high school student with his university exams up ahead of him, runs into a girl named Azusa Oribe (Akari Hayami) . He falls in love with her at first sight,and takes her out on several dates. Eventually, she makes a strange confession.
“Everyone that I meet forgets me a few hours later. For some reason I don't understand, I disappear from their memories.” Takashi finds it impossible to believe her ridiculous story, but later, he suddenly realizes that his recollections of Azusa are fading.“Who did I meet yesterday?” “Who am I supposed to be going on a date with today?”. Takashi struggles to hold on to the memory of his beloved.
大学受験が迫る高校3年生の葉山タカシ(村上虹郎)は、織部あずさ(早見あかり)という少女と出会い、たちまち心を奪われてしまう。何度も会ううちに、あずさは自分と出会った者は必ずその記憶を数時間後に失ってしまうという奇妙な告白する。信じようとしないタカシだったが、ふと自分が誰と会って、一緒にどこへ出掛けていたのかを忘れてしまっていることに気付く。彼はあずさと出会った日の出来事、デートの約束などを詳細にメモに書き記し、記憶をとどめておくようにするが……。