Homeless murder by high school student Ren Katayama (Yuzu Aoki) ... One month later, lotus's personal information was identified and exposed online, which was a big topic. There are many terrible injuries that are not true, and Lotus' father, Ryotaro (Masahiro Toda), asks the "Finger Murder Countermeasures Office" to catch the criminal who first exposed the information. Wataru Manjo (Shingo Katori) and Sakiyoshi Usui (Nagisa Sekimizu) immediately investigate, but as they investigate their friendships, the true nature of the lotus becomes apparent.
A fictitious department "Finger" established within the Metropolitan Police Department to deal with the social problem of keyboard murder = finger murder, in which the victim commits suicide in the worst case, suffering from slander and burning on the Internet.
