Dark Reunion

''A dark force called "Black Beat" dwells in my right arm. "They" are trying to steal this power and create a new world. The "they" I speak of is a secret society called "Dark Reunion"! But I will protect this world! I, The Jet-Black Wings!''

-Kaidou Shun, describing the organization and its intentions

The Dark Reunion is a fictional organization. According to Kaidou Shun, the Dark Reunion is trying to steal the Black Beat, a dark force that dwells in Shun's right arm, and intends to create a new world with it. Shun wears red bandages on his hands as a means to "seal" his power source, his Black Beat, and prevent the Reunion from stealing it.

Throughout the series, Shun frequently blames random bad events on Dark Reunion, but he also sometimes claim to have caused certain events by unleashing his Black Beat. For example, he once claimed that his Black Beat went out of control and destroyed Saiko Metori's house.

Past
The Jet-Black Wings was a top-class assassin from the Dark Reunion in the past until he overheard the Dark Reunion's evil plans to sort mankind and create a new world. Jet-Black Wings stole a stone and tried to escape, but was cornered by members of the Reunion. With no other options, Jet-Black Wings was forced to use a dangerous technique to escape, by separating his soul from his body. His soul entered the body of Kaidou Shun while he was still in his mother's womb. That allowed him to escape.

Powers and Equipment
As a chunnibyou, Shun believes that he has the following abilities and uses the following equipment: A high-damage single-target lightning ability. It was "used" by Shun to kill an attacking snake at PK Academy. Shun claims that this is the source of all his powers. Shun wears red bandages on his hands, as a means to seal his Black Beat. Shun keeps a secret notebook full of things from his chunnibyou imagination, such as Spells and information about Jet-Black Wings. Shun gets very embarrassed when someone gets their hands on the notebook. Shun has a cheap necklace that he bought for ¥30,000. He was scammed by Clairvoyant Mikiko. Shun believes that this necklace would help him make friends and that Kusuo would call him pal. Briefly mentioned in one of the Episodes, Shun appeared to have found an abandoned building that would serve as a good hideout. He shows up trying to look for Kusuo and show him their new hideout.
 * Judgment Knights of Thunder
 * Black Beat
 * Bandages
 * Notebook
 * Necklace
 * Hideout

Members

 * Murder-Dragoram-Snake (Deceased)
 * Saiki Kusuo (Temporarily)
 * Kaidou Shun/ Jet-Black Wings (Formerly)

Clairvoyance Mikiko
She was a fake fortune-teller who tried to cheat Shun's money. After listening to Shun's story about Dark Reunion, she did not believe him at first, until Kusuo, pretending to be part of Dark Reunion, threatens her and scared her into returning the money she cheated Shun of. She was shown running up to Shun and returning the money while apologizing for not believing Shun's story, hence it can be assumed she now believed Dark Reunion exists.

Tanaka Ichirou/Jade Eyes
Tanaka was a random student in PK Academy. He took advantage of Shun's chunnibyou and tricked the latter into believing that he was Jade Eyes, the leader of an organization aiming to take down Dark Reunion. He then gives the latter his homework and made Shun do it for him under the pretence that it was a pass to let Shun join the group. He even sucessfully tricked Shun into leaving his wallet behind. Tanaka would have gotten away with his prank if not for Kusuo, who witnessed Tanaka laughing about how foolish Shun was. Kusuo, pretending to be Dark Reunion, threatens the boy and scares him away. In an omake, Tanaka was shown describing his experience.

Kaidou Mom/ Mama（真魔）
Kaidou Shun's mother, whom he calls "Mama", which can be read as "真魔" in Japanese, which means "True Demon". She is unaware of his chunnibyou and believes that he is a shy and a good child.

Saiki Kusuo
Kusuo is Shun's friend. In Shun's mind, he believed that Kusuo has powers like him (which is somewhat ironic considering Kusuo actually has powers). He frequently annoys Kusuo because of this. However, Kusuo has, on multiple occasions, pretended to be part of Dark Reunion. For example, Kusuo engraved the Dark Reunion Symbol on a wall after destroying "Jade Eyes" hideout, which caused Shun to believe it was the work of Dark Reunion. Clairvoyant Mikiko also believes in Dark Reunion because of Kusuo. She was shown apologizing to Shun for not believing in Dark Reunion after Kusuo threatens her, causing her to believe that he was from the Evil Organization.

Mankind Sorting Plan (Jinrui Senbetsu Keikaku)
This plan was supposedly created with the intention to use Murder-Dragoram-Snake to sort people into the organization.

New World (Shin Sekai)
The Dark Reunion is actively chasing The Jet-Black Wings to steal his power source, his Black Beat, and create a new world using it.

Trivia

 * "Dark Reunion", if to be translated into Japanese, turns out as "闇の再開" yami no saikai. With "reunion" standing for saikai, it follows the series' unspoken conventions of using the Greek letter Ψ psi, as well as Χ chi.
 * Dark Reunion's logo appears to be a reference to the NERV Logo from Neon Genesis Evangelion.