With his condition rapidly deteriorating, Takuboku tasks Kyousuke with tailing a suspicious man they saw at the church. Takuboku is certain that a single criminal, Accuser X, is the true culprit behind the string of crimes involving accusatory letters which have exposed various social issues. Who is Accuser X, and what is that person's true objective?
However, whether your life is spent in vain—
—لكن، سواء قُضيَتْ حياتك عبثاً
Aber soll dein Leben nutzlos gewesen sein?
Pero usted puede elegir
Pero usted puede elegir
Cependant,
vous avez la possibilité de choisir
Potete però scegliere
No entanto, sua vida ter propósito ou não
Но от вас зависит, 
прошла ли жизнь впустую,