The diary ends here.
To be precise, the story of the diary entry for the day of "Lord Ashen's departure" has come to an end.
Without giving Renji the chance to flip through any further, the diary on the table gradually fades away until it disappears.
Clearly, in order to see more of the subsequent diary entries, one must proceed to the next "secret room."
Even with just one diary entry, the amount of information it contains caused Renji, who has now returned to the real room, to sit at the table for a long time without moving, digesting the contents of the diary and the many truths about the game and his arrival in the "second playthrough."
Throughout the diary, Lena views things from the perspective of a "native," while Renji, as a player, was able to discover and analyze many more details.