A letter from an unknown sender arrives for her. Do you know your own poison? The sentence written in the letter begins to strangely intertwine with the past she had forgotten. Whether the poison is an actual toxin, a secret from the past, or a truth Kyoko herself has been turning away from—.
Not every truth is the correct answer. Long light-purple hair, purple eyes. Calm and cool-headed, she prioritizes reason and logic over being swayed by emotions. She possesses exceptional powers of observation. To her, a case is not simply a riddle to be solved. It only truly ends when she tracks down the intentions hidden behind the revealed facts and the truth beyond where the evidence points. However, is every truth really the correct answer?
On Kyoko's desk, records of a case that had remained unsolved for days were spread out in disarray.
She remained motionless for a long time, her gaze fixed on the final page.
A document where neither the victim's name nor the location of the incident was written.
And yet, it felt strangely familiar.
The corners of the paper were faded as if they had been kept for a long time,
and on the last page, unlike the other parts, a single sentence was written in clear handwriting.
Do you know your own poison?
Release Date 2026.10.25 / Last Updated 2026.10.25