Oz leaves for the ceremony, while Gilbert is possessed by one of the death gods. As Oz makes an oath during the ceremony conducted by his uncle, Oscar, the clock (which was silent for 100 years), suddenly strikes. This brings the strange figures inside the sanctuary, preparing to take Oz away. The possessed Gilbert tries to kill Oz, and succeeds in stabbing him. Meanwhile, the girl from his vision (called Black Rabbit by the death gods) comes and fights them to save Oz from being pulled into the Abyss. Gilbert snaps out of the trance momentarily, sees one of the figures faces, and blocks Oz, who was trying to kill the intruders. Unfortunately, he slashes Gilbert across the chest. Oz is then taken into the Abyss for the sin of existing.

Oz gets pulled down into the Abyss. He explores a bit and discovers the place as like a broken toy box. He also finds out the the place looks the same no matter where he goes. Some dolls attack him before the Black Rabbit arrives and saves him once again. First, he is fearful of the girl, who tells him to call her Alice, but he soon warms up and begins to eat cookies. When asked by Alice why he isn't afraid of her, he simply replies that too many unexpected incidents have happened to him already. He learned that he should remain calm whenever strange things happen in order to stop others from being hurt. She says that Oz is required to make a contract with her in order to leave the Abyss, and he seriously thinks about it, until he's transported away. After a fake Sharon, which is actually a Chain (a monster born in and from the Abyss) misleads him, he finally agrees to form a contract with Alice. They both leave the Abyss and Raven, a mysterious new figure, Sharon and Break, her servant, find him lying on the ground just as they were about to save him.

Oz wakes up to see Raven, Sharon and Break. Upon seeing Raven, Oz calls him Gil. Raven's appearance is similar to those of Gilbert - having black hair, and golden eyes. Break explains to Oz about Pandora(an organization who's objective is to find out anything they can about the Abyss), the residents of Baskerville (their enemies), and their main goal. Alice then possesses Oz and takes Sharon hostage in order to escape, but Break stops her by forcing her from Oz's body. After her release from Oz, Break exclaims that he will have to kill Alice. Oz forbids it, saying that Alice is not an enemy, for it was through her that he escaped the horrible Abyss. But, that it is Break who is an enemy - someone who Oz had only seen once and was now attacking his friend. Break back's down, and blames the attack on Emily, his puppet. Oz's pocket watch then starts to act strangely. Raven comments that the door to the Abyss had opened and a chain escaped. By using Raven's chain's powers, Raven was able to control the B-Rabbit's powers from within Oz. With this power, Alice was could release her full form and defeat the chain. After the door was closed, Alice found out why it had reacted to her. The music lured her to the watch because it contained one of her memory shards. Oz then remembered what a man from another of his visions had told him about Alice.

Break gives Oz, Alice, and Raven their first mission. They are sent to a nearby town in search of an illegal contractor, someone who makes a contract with a chain without the permission of Pandora. While there, Alice goes missing and Raven goes to look for her. Alone, Oz sees a young girl selling flowers. When the trio have dinner, Oz realizes Raven's other personality, which reminds him of Gil (especially the black hair and golden eyes). Raven then informs Oz of why people become illegal contractors - to change the past. As Alice falls asleep, Raven and Oz leave to finish their mission. Meanwhile, Sharon and Break are discussing the mission and how they had kept some information secret. Alice is soon awakened by an attack by a chain, whose contractor turns out to be the girl that was selling flowers. As Raven shoots the chain, the girl's clock seal makes a full rotation. She gets drawn into the Abyss, screaming. Oz tries to save her, but is restrained by Raven, to stop him from being dragged down into the Abyss again. On the ride home, Raven informs them that the only way to stop Oz from being dragged into the Abyss when his clock makes a full rotation is to kill Alice, which initiates an argument between Alice and Raven. The episode ends with a death god laughing inside the Vessalius mansion.

Oz decides to return to the mansion, where his coming of age ceremony took place. However, upon arrival, the state of the mansion appears deserted and worn down, unlike the rich glorious mansion as Oz remembers. At the same time, memories pertaining to Gil are recollected, including Oz's insistence of his role as master protecting his servant. As Raven scouts the mansion on his own, he's ambushed by Doldam's marionettes. During the fight, it is revealed that Raven is an older Gil and that ten years have passed since the coming of age ceremony. As Doldam once again controls Gil, Oz faces a controlled Gil just like before.

Oz manages to shock Raven back to himself, and his gun fires, but at Zwei instead of Oz. Oz follows Raven, who claims that he is no longer the Gilbert Oz once knew, to the place where they found the pocket watch. Oz convinces Gil that he won't let him go even if he's joined the Nightray house (an enemy of Bezarius). Oz goes back for Alice, and on the way to the grave they catch a glimpse of one of Alice's memories, and are drawn into a dream dimension where they are confronted by the Will of the Abyss, who appears in the form of a stuffed rabbit. Gilbert shoots the rabbit and they escape.

Oz wakes up in Gilbert's house, and ponders on the questions the Will of the Abyss had asked him earlier. Break then enters the house, and talks to Oz and Alice regarding the topic of chains, and why he and Sharon had not aged. Thus, Oz realizes that as an illegal contractor, his clock had already begun moving. Break then comments that although he can see Oz, he cannot 'see' his presence. This had annoyed Oz. A girl comes into the house and drops a letter in the name of Vincent. Later, Gilbert takes Oz and Alice outside, where her crave for meat starts. Oz stays back to wait for them to buy food. Meanwhile Alice wonders what 'parents' mean and decides to ask Oz, only to be stopped by Gil. He tells her the reason that Oz is sensitive to the topic, and why he acts in such a self-harming way. At the same time, Oz sees a group of boys bullying a child, and saves him. They begin to talk.

Oz saves a boy named Phillip, a kid from a noble family that just became poor. A flashback came to Oz when Philip asked about Oz's parents. 10 years ago, young Gilbert was about to ask why Oz's father couldn't talk to him. He responded that Oz is too filthy and unfit to be his son. After three days in the dungeon, Gil apologizes to Oz for interfering in his life, but Oz says it doesn't matter and accepts the fact that his father just hates him. After the flashback, the girl how brought the flowers, named Echo, comes to take Philip as a hostage, whose father is revealed to have become an illegal contractor. Pandora member, Reim (Liam), explains that Grim escaped their grasp unharmed, which is distressing. While Echo chases after Phillip and Oz chases her, Gil and Alice look for a chain that Alice has sensed. Since it is no use for Phillip to be a hostage, Echo goes after the chain. She is injured in the process, but Vincent comes along and holds her back. He tells her to just watch. Gil then releases Alice's powers, but Oz wants to stop her from killing Phillip's father. In his mind, the man from his vision tells him that he can hold her back.

Oz somehow manages to suppress Alice's power, and confronts Phillip's father. Amid memories of his own father's coldness, Oz tells him that being by Phillip's side will be enough even without changing their past tragedies. Their conversation is cut short as Vincent Nightray shoots Grim's contractor and sends him back to the abyss. They return in Vincent's carriage and ride to the Reinsworth manor, where Alice asks Oz why he was so worked up over Phillip's father, and Vincent claims to be a blood relative of Gilbert. Break shows Vincent to the door while discussing a theory that somebody inside Pandora was responsible for allowing Grim to escape. It is clear that Break suspects Vincent.