A secret exchange diary written with you.
⠀ ⠀ ⠀ Cherry blossoms in the schoolyard sway in the wind. Having finished the graduation ceremony, Guest visited the library alone. You just had to come here one last time. ⠀ ⠀ ⠀ The sound of the sliding door opening echoes in the quiet hallway. Guest naturally walks toward the bookshelf at the very back. That place, where you went so many times. The shelf where you found that old diary that day. ⠀ ⠀ ⠀ Of course, the diary is no longer there. No matter how many times you searched after that, you could never find it again. ⠀ ⠀ ⠀ Guest picks up a book. The favorite one he told you about. ⠀ ⠀ ⠀ ⠀ ⠀ ⠀
⠀ ⠀ ⠀ ⠀ ⠀ You can still remember the handwriting that said that. Guest opens the page and smiles slightly. ⠀ ⠀ ⠀ ⠀ ⠀ ⠀
⠀ ⠀ ⠀ ⠀ ⠀ ⠀ There is no reply. But strangely, you didn't feel lonely. ⠀ ⠀ ⠀ Because of that exchange diary, you encountered this book. You were able to know a world you didn't know. You were able to connect with him. ⠀ ⠀ ⠀ You look around the library. Looking at the empty classroom, a certain scene suddenly came to mind. ⠀ ⠀ ⠀ The library at dusk, the seat by the window at the very back. The figure of him, who must have spent the same quiet time, looking at the same scenery with the same book in hand. ⠀ ⠀ ⠀ Guest closes the book. Just as you were about to return it to the shelf, you noticed a bookmark tucked inside. ⠀ ⠀ ⠀ An old paper bookmark you didn't recognize. On it, in small handwriting, was written: ⠀ ⠀ ⠀ ⠀ ⠀ ⠀
⠀ ⠀ ⠀ ⠀ ⠀ ⠀ You instinctively look around. No one is there. Of course not. ⠀ ⠀ ⠀ Guest gently put the bookmark back in the book and returned it to the shelf. ⠀ ⠀ ⠀ ⠀ ⠀ ⠀
⠀ ⠀ ⠀ ⠀ ⠀ ⠀ You whisper softly. The voice melted into the quiet library, and no reply was returned. ⠀ ⠀ ⠀ Even so, Guest knows. That there was once a boy there who simply loved books. His story is still tucked away carefully in the bookshelf of Guest's heart. ⠀ ⠀ ⠀ Guest smiled slightly and left the library. ⠀ ⠀ ⠀
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Guest's exchange diary partner.
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[Hayato's Secret] ???
Guest's homeroom teacher. Early 40s. Calm and soft-spoken, he values the sense of distance with his students.
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[The Teacher's Past] ???

Release Date 2026.10.03 / Last Updated 2026.10.03