Kurogiri

Black Mist (黒霧, Kurogiri) is a villain and one of the main antagonists of the Ultimate Space & Jams Arc. His goal is to kill All Might "The Symbol of Peace".

Appearance
As his name implies, Black Mist's entire body is made out of mist. He normally wears a very elegant suit with a tie and has five metal plates that go from around his collar bone to just below his eyes.

In his villain costume he doesn't wear anything and only has three metal plates around his neck.

Personality
Black Mist is very polite, which is shown when he greets the students and introduces himself in a formal manner. However, like his fellow villains, he also has shown a sinister side; threatening the students by telling them that they would be tortured and killed when warping them to various areas of the U.S.J.

Ultimate Space & Jams Arc
Black Mist appears at the Ultimate Space and Jams, using his Quirk to warp himself and the villains to the area. He then appears before the escaping class of students, introducing themselves as the Villain Alliance and says that they were the ones who broke into Yuuei yesterday. Black Mist goes on to say that their mission is to kill All Might and wonders why he isn't here. Katsuki and Eijirou attack Black Mist, but their attacks simply go through him. Black Mist then uses his Quirk to warp most of the students to various areas of the U.S.J.

After doing this, Black Mist fights No. 13. Black Mist uses his Quirk against No. 13's Quirk, warping No. 13's Black Hole against him, causing No. 13 to start turning himself to dust, prompting Black Mist to say that his battle experience is far lower than other Heroes due to him only specializing in disaster relief. Having incapacitated No. 13, Black Mist tries to stop Tenya from escaping, knowing that his escape would put them in jeopardy. Mezou attacks Black Mist, preventing him from attacking Tenya.

As Tenya reaches the exit, Black Mist tries to attack him again, but Ochako, seeing a physical part of him, grabs him and uses her Quirk to make him float into the air, stopping him. Black Mist decides to inform Shigaraki on the situation, telling him that he has incapacitated No. 13, but failed to stop one of the students from escaping.

Black Mist then uses his Quirk to protect Noumu against All Might's attack. As he is about to attack All Might, Katsuki strikes him and pins him down, preventing him from using his Quirk. Black Mist is then set free when Noumu attempts to attack Katsuki.

After All Might defeats Noumu and Shigaraki starts to panic, Black Mist calms him down by saying that Noumu did considerable damage to All Might and they should take the opportunity to finish the job. After Shigaraki regains his composure, he and Black Mist attempt to attack All Might, but they are intervened by Izuku, whose intervention gives the Heroes enough time to arrive at the U.S.J, forcing Shigaraki and Black Mist to stop their attack. Black Mist and Shigaraki are then sucked into No. 13's Black Hole and are seemingly turned into dust, but Black Mist uses his Quirk at the last second to warp him and Shigaraki back to their hideout, thus saving themselves from being killed. After the mysterious voice on the monitor asks about the whereabouts of Noumu, Black Mist regretfully informs that they do not know Noumu's coordinates due to him being thrown far away and were unable to pinpoint his location, thus they were unable to save him.

Sports Festival Arc
Black Mist appears before the Hero Killer, Stain. Stain draws his katana and aims it at Black Mist. Black Mist tells Stain to withhold his blade as they have similar interests and that he has been wanting to meet someone of his notoriety. Black Mist asks Stain for a moment of his time, teleporting Stain and himself away.

Field Training Arc
Black Mist brings Stain to the Villain Alliance hideout to meet with Tomura. However, the meeting between Stain and Tomura goes awry. Black Mist asks the mysterious voice on the monitor if it is all right to keep the meeting going. The voice on the monitor orders Black Mist to allow Stain and Tomura to continue their meeting, saying that Tomura's meeting with Stain (an experienced infamous villain) will stimulate Tomura's growth.

The meeting between Tomura and Stain turns into a fight. Black Mist tries to intervene, but Stain injures him and prevents him from moving. After Stain and Tomura declare their common interest in destroying the current society, Stain restores Black Mist's mobility and demands to be returned to Hosu.

Black Mist warps himself, Stain and Tomura to Hosu. After Stain leaves to finish his business, Tomura complains about Stain's constant preaching, to which Black Mist tells Tomura that he shouldn't mock Stain for his preaching, stating to Tomura that Stain's villainous methods have produced great results which intrigues Tomura. Tomura orders Black Mist to release the Noumus. Black Mist warps three Noumus to their location and Tomura orders the Noumus to attack Hosu.

Black Mist asks Tomura if he will join the assault on Hosu. Tomura replies that he won't because of his shoulder injury.

Tomura, using binoculars, watches Stain kill the winged Noumu and becomes annoyed that nothing is going his way. After the other two Noumu are restrained and arrested, Tomura disintegrates his binoculars out of anger. Tomura decides to leave and return to the Villain Alliance hideout. Black Mist asks Tomura if the results of the attack on Hosu are to his satisfaction, but Tomura replies that the results depends on tomorrow. Black Mist teleports himself and Tomura back to the Villain Alliance hideout.

End of Term Test Arc
A broker brings in two potential candidates to join the Villain Alliance. However, Tomura isn't pleased with his visitors due to them seemingly being types he despises the most and orders Black Mist to send them away. Black Mist asks Tomura to be patient and listen to what the visitors have to say because they were scouted by the broker who produces quality results. The broker tells Black Mist that he wants his service charge one way or another; the broker also agrees with Black Mist about letting the visitors have a chance to introduce themselves.

After Himiko and Dabi introduce themselves, Tomura becomes angry at Himiko and Dabi for constantly talking about Stain, finding them to be no good and prepares to attack the boy and girl; Himiko and Dabi react by preparing to defend themselves. As the three clash, Black Mist uses his mist to warp Dabi, Himiko and Tomura's attacks away from each other, which stops a potential fight. Black Mist tells Tomura that expanding the Villain Alliance is necessary in order to achieve his wishes, now that the spotlight is on the Villain Alliance and asks Tomura to not reject Dabi and Himiko's help. Black Mist reminds Tomura that if he doesn't make use of any help they are offered, then everything left to them will disappear. Understanding Black Mist, Tomura storms out of the room in silence. The broker comments about Tomura being too young; Black Mist asks the broker to wait a few days for their reply regarding Dabi and Himiko's registration into the Villain's Alliance; Black Mist comments that Tomura understands what needs to be done and he is sure Tomura will understandingly accept Dabi and Himiko.

Quirk and Abilities
Warp Gate: Black Mist's Quirk can create and manipulate a dark fog that acts as a portal. When the user produces a mass of the dark fog, it transports anything it comes in contact with to a nearby location.

Battles
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Ultimate Space & Jams Arc
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 * Shouta Aizawa & No. 13 vs. Black Mist & Unknown Enemies: Win
 * All Might vs. Noumu, Black Mist & Shigaraki Tomura: Win
 * All Might, Izuku Midoriya, Katsuki Bakugou, Shouto Todoroki & Eijirou Kirishima vs. Villain Alliance: Lose

Shigaraki Tomura
Black Mist serves Tomura faithfully and carries out any command Tomura gives without question, similar to that of a servant. Despite his role being similar to a servant, Black Mist also appears to be somewhat of a mentor towards Tomura, such as calming down Tomura when Noumu was defeated or advising Tomura to give Himiko and Dabi a chance to introduce themselves so that they could attempt to recruit them into the Villain Alliance in order to increase their numbers.