Fire-breathing Bug

The Fire-Breathing Bug (火吹き蟲 hifuki mushi) is a Shinjuku-based troublemaker who specializes in arson. At the scene of its or his crimes, he leaves the following message as his calling card: "This world is a buggy program,"—followed by a second half that varies depending on the context.

Only the first half—"This world is a buggy program"—is known to and publicized by the media, as Materials Compiling Group No.3 has kept the second part secret during its investigation into Fire-Breathing Bug.

Appearance
The Bug's commonly seen figure appears to be humanoid with a masculine frame, usually seen wearing a suit from the back. His face is always obscured by the large black umbrella he carries, the outer side of which bears the warning 'Watch out for fires' in kana (火の用心 hinoyōjin).

Personality
An enigmatic figure in many respects, Fire-Breathing Bug is proactive toward goals that have yet to be understood in full. He acts to incinerate those he has deemed 'bugs' or 'pests' and appears to take some satisfaction in doing so, as he is seen singing with a smile while Know burns. On the one hand he is liable to tell someone like Tena Sorimura that they can "fly into the flame for all [he cares]," but on the other he values emotions and appears to have taken severe umbrage with a certain someone or a certain organization for reasons currently unclear.

The Bug often speaks in a slow if not halting tone.

Chronology
To be added.

Abilities
To be added.

Trivia

 * The Fire-Breathing Bug's name is first mentioned at the end of Chapter 5, twelve chapters before his formal debut.