Introduction Arc

Arc Outline
The Introduction Arc is the first story arc of the D.Gray-man series from Katsura Hoshino. It introduces the main characters and their affiliation named "The Black Order".

The Cursed Church
Moor and her partner Chales are investigating an old church which said by citizens that it has been cursed. After that they entered the church, they where been suddenly attacked by bats. Someone took Moore away which leaving Chales alone. The person who had take Moor contains to be a boy. Moore then handcuffed him which the boy says that he didn't mean to do that and that he was only trying to grab that cat. Moore then handcuffed him on the window, which the boy explains why he's in the church. Moor doesn't seem to believe him and tells him that she will round up his companions. A loud scream came which Moor is heading there and sees Chales binded on a pole and later has been vanished. Moore is then in a shock and now thinks that the rumors are indeed true. She then can't breath due that Chales corpse gas is poisonous. The boy then saved Moor and explains her what has happened to her partner and Moor falls unconscious.

At the Police Station
Moor has been awakened and where been grabbed to the interrogation room where they got the suspects. The boy turned out to be Allen Walker. They are start asking questions which Allen get high pressures from them. The chief then grabs his hand because he thinks that it is blood because it's red and sees that there is a cross in the middle of his hand. He then calls Allen a psychopath because he thinks that he has burned the cross inside his hand. Moor then defense Allen which one of the officers where been saying that there was a large bullet during the event and Allen had only a cat. The chief then ask Moore why she was unconscious. Afterwards, Allen suggested to help them with the investigation because he has seen the culprit. He then says that the culprit is nicknamed "Akuma" which he tells them that the cross that he has on his hand is an anti-akuma weapon. The chief is then telling Moore that she must watch Allen like a hawk and head off to the cursed church.

Arrival of The Earl of Millennium
The Earl of Millennium walks by the event of Chales death. He heads of to his "Akuma". After that his akuma where been blowing off gas, he stands behind him and ordered him to kill more and evolve. He then heard someone which he disappeared.

Appearance of the Akuma
Moore is coming to her brother and tells him that he must eat, he then tells her that he is full which Moor apologizes to him which he soon says that he will eat something soon. They both then hear Allen voice which Moore caught him and knows that he's trying to go back to church. Later Allen looks outside and sees the church and hopes that the inspector is alright. Moore then ask Allen if he really thinks that the culprit is an Akuma because she doesn't believe it. Allen then says that these demons are a little bit different and explains it to Moor. Moor's brother rolls by and stopped and enters the room. He then starts to shake which Moor is worried about it asking if he's alright. Allen sees that Moor's brother is in fact an Akuma which Moor's brother then suddenly transform into an Akuma and starts to attack them. Allen where been hit by the blast straight to the church.

Battle against the Akuma
After being attacked by the Akuma, Moore sees that Allen has caught the bullet. Moore tries to touch it, but Allen says that there is a gaseous agent inside it. Which that the example where been showed to the cat. Moore is then wondering what has happened to Mark. Allen then explains what has happened to him. The Akuma then appeared at the church, which that the inspector and the officers are coming asking what Moore is doing in the church. After seeing the Akuma, the Inspector is then ordering them to shoot which Allen says that guns won't hurt him and tells them to run. The Akuma shoots them and sees that everyone has been died. Moore is crying scolding the Akuma as a monster. Allen explains her much more about the Akuma. After that Allen has told her what Akumas are doing, an flashback about what has happened between Moore, Mark and Claire appeared. Later Allen has defeated the Akuma and saved Claire's soul. After the battle with the Akuma, they where been looking at the moon which Moore ask Allen if Mark and Claire are in heaven. Allen then says that they are.

Arrived at the Black Order
Allen climbed up a cliff to get to one of the Black Order organization branch. He gets spied by the members which they are wondering who he is. Later they are using The Gatekeeper to investigate Allen with his X-ray, which Allen suffers him that he could not figure out if he's an Akuma or a Human. The Gatekeeper then sees his pentacle and then says that he's an Akuma. Allen is then been attacked by an exorcist named Yu Kanda, which he uses his Mugen to battle him. Allen's arm starts to activate from a sudden.

Allen VS. Kanda, The Misunderstanding & The acception
Yu has damaged Allen's anti-akuma weapon, which Allen is in an shock. Yu ask him about Allen's arm which Allen simply replayed that it is an anti-akuma weapon and that he is an exorcist. Yu then looks angry at the Gatekeeper, which that the Gatekeeper claimed that he is an demon after seeing his pentacle. Allen then becomes frustrated at the Gatekeeper which he claimed that he's not a demon but an human. Yu then says that he will believe it when he sees Allen's guts, which he activates his sword saying that he will cut him in two. Allen then says that he is really not his enemy and says that he there should be a letter of recommendation from Cross Marian. That shocks Yu which he stops attacking Allen. Allen then says that it must be there, which everyone inside the oder is staring at Komui. Komui then tells one of his mens that he must search the letter on his desk, which again Komui where been stared, which he then says that he will help finding the letter. After that Komui and it's assistant found the letter, Komui then tells Reever that Kanda must stop his attack on Allen. After that Reever connects with Kanda saying that he must stop the attack, Kanda then doesn't get it anymore. After that the problem has been left behind, Lenalee then shows Allen places around the Black Order. Komui then introduce himself to Allen and fix his arm. After tha Komui has fixed Allen's arm, he then brings him to Hevlaska which she Synchronize Allen. After that she has been finished to synchronize Allen, Allen then ask them whast an innocence is. Komui and Hevlaska explains it to him. Later Allen is seen in his own room, touching a picture which he tells Mana that he will not stop walking.