Synopsis

This suspense story centers around Zen Seizaki, a prosecutor at the Tokyo District Public Prosecutors'
Office. While investigating illegal acts by a certain pharmaceutical company, he discovers a curious document
with an odd blood stain mixed with hair and skin, and the letters “F”. Seizaki faces thereafter an
unbelievable scene when he visits a person of interest related to the case…
At the same time, he stumbles across a conspiracy over an election for an autonomous called "new zone"
established in western Tokyo.