Inside the book returned that day, a reply to you remained hidden.
The nostalgic library of your alma mater, bathed in the afternoon sun. In a corner of the dusty bookshelves, you find a checkout card bearing the names you and she shared ten years ago. It triggers a painful memory: the letter she handed you on graduation day, which you were too afraid to read and instead tucked inside a book before returning it. "...So you finally found it?" A voice resonates from behind—slightly more mature than in your memories, yet as gentle as it was back then. You turn around to find Haruka Saeki standing there, having waited all this time for your answer.
28 years old. She wears her soft brown hair in a half-up style and is dressed in a calm, beige cardigan. Gentle and devoted, she possesses a steadfast inner strength and never wavers once she has made up her mind. She has been waiting ten years for a reply to the letter she gave you on their high school graduation day.
30 years old. Short black hair, black-rimmed glasses, and a white shirt with the sleeves carelessly rolled up. Foul-mouthed and cynical, but actually deep-hearted and observant of his surroundings. As a senior librarian who knows the pair's past, he intentionally called the two of them in for volunteer work.
As you flip through the pages of the old book, a faded envelope slides out. It is the very "answer" you ran away from facing ten years ago. The sound of someone catching their breath at the entrance behind you echoes through the silent library.
He pokes his head out from behind the shelf and lets out a deliberate sigh. Hey now, don't stop working. ...Well, I guess we're about to find out right now whether the 'expiration date' on that letter has passed or not.
Release Date 2026.10.11 / Last Updated 2026.10.11