Joker

This man is a Second Generation that appears to have knowledge of Shinra's past.

Appearance
Joker appears to be a tall man in his early adult years. He has long and stringy black hair that falls below his neck. He wears a black top-hat and a black bandanna across his face with a pattern on it that covers his left eye. His iris is oddly shaped like a spiral. He is commonly seen smoking a cigarette. He wears an old-fashioned shirt with a black waistcoat, white trousers and white shoes.

Personality
Joker seems to always carry a sadistic expression.

Abilities
This man appears to be some kind of Second Generation, as he is able to manipulate and solidify the smoke that is released from his cigarette. With the smoke that he creates, he has a habit of creating symbols and signs, such as the suit of cards that appear in various card games. He is shown to use some sort of sand substance to cause explosions and things to burst into flames.

Introduction arc
Unknowingly to the 8th Special Fire Brigade who were in the middle of a mission purifying and killing Mikako's father, Joker had sneaked in sand throughout Mikako's residence, and lit it, resulting in the roof caving in and part of the house being destroyed, infuriating Akitaru. Prior to these events, it was shown that Joker attained this mysterious sand from a man in a science lab.

He later confronted Shinra personally inside Haishima Heavy Industries during the Fire Officer Newcomer Tournament, and started teasing him about his family's past, claiming he knew the truth about it. Shinra baffled at the situation and initially thinking it was some sort of test, resulted in hurdling toward Joker with a fiery kick, while Joker dodges his attacks. He goes on to say that if Shinra can interest him, he will reveal the secrets of the reality that happened on that day. He pulls out the sand and an explosion goes off in-front of Shinra, blinding him. Joker appears out of the smoke from the explosion, and knocks back Shinra using his elbow. The sand causes another explosion, and Shinra is left unguarded. Joker throws his fire-darts at him, which heavily injures Shinra. Joker steps up to him, wondering whether he should kill him or not. However, he takes a glance at Shinra's expression, and is amused by his grin. As a reward for smiling under the circumstances Shinra was in, he reveals to him that his little brother Sho is actually still alive.