This is a timeline based in the events related to the Jun Mochizuki's The Case Study of Vanitas. This timeline is a layout of events as they happened in chronological order from the earliest mentioned point in history until the "present" or the beginning of the plot within The Case Study of Vanitas universe. For further information of events following the initiation of the plot, please proceed to checkout Plot Timeline: The Case Study of Vanitas.
Historical Timeline
Story Arc Events
Unspecified Chronological Events Prior to the Plot

The Babel Incident - an experimental disaster that rewrote the principles of the world - creates thousands of Vampires . As well, Astermite comes into existence, being synthesized from some form of rock to create a mineral that had never existed in the world prior. Eventually it would be discovered as a more efficient and less polluting power source and would be used in place of coal burning to power street lamps, airship lift generators, motorized vehicles trams and more.

Vampires and humans exist primarily on two planes of the same reality, being the human realm and Altus - its dark reflection. Altus is only accessible through the use of The Borders , which can only be accessed by Vampires created by The Babel Incident. Anyone not falling into this category will be lost between the planes forever unless they are making contact with a Vampire created by the Babel Incident.

A Vampire named Vanitas is born as a Child of Ill Omen on the night of the Blue Moon - unlike the majority of Vampires who are born on the night of the Crimson Moon. For this, Vanitas is shunned by his fellow Vampires, eventually being forced into exile, where he would grow to despise his kin. To satisfy his own personal vendetta, Vanitas created a mechanized grimoire called The Book of Vanitas and contained a curse within that would be capable of bringing about the end of Vampires entirely.

The Bourreau are established as executors - primarily of Curse-Bearers; whom they decapitate.

The Chasseur are established.

Long ago, Vampires and humans were at war with one another, during which thousands of Vampires betrayed thier own kind and fought alongside the humans. One such Vampires was Lord Ruthven , who had the Bourreau, Jeanne , to act on his behalf. Wielding the Crimson Gauntlet , Carpe Diem , Jeanne scorched the land and slaughtered many of her own kind, earning her the nickname of "The Hellfire Witch". Following the war, Lord Ruthven forced Jeanne into an induced sleep, remaining dormant for years to come.

With the war ended and the Vampires defeated, many retreated back to Altus through The Borders - though some would come to live alongside the humans in secret, one such Vampire being Count Parks Orlok - who would act as a Vampire representative of The Queen and ensure the coverup of any Vampire-related incidents so that they can continue to maintain the peace between the Vampires and the humans who are oblivious to the Vampires' existence.

Veronica de Sade was born to Count de Sade and his wife.

Louis de Sade was born of the Crimson Moon into the De Sade Aristocracy as the second child of Count de Sade. It was discovered shortly after his birth that Louis was a potential Curse-Bearer, and as such Count de Sade sent Louis to live with his grandfather, The Teacher, permanently for the sake of his health and to allow The Teacher to observe his condition.

20 Years Before the Plot

Dominique de Sade is born of the Crimson Moon into the De Sade Aristocracy as the third child of Count de Sade.

19 Years Before the Plot

Noé Archiviste is born of the Crimson Moon into the Archiviste Clan.

18 Years Before the Plot

Vanitas is born.

18 Years - 2 Months Before the Plot

Count de Sade organized it so that Dominique de Sade would make monthly visits to his father's, The Teacher's, castle.

The Archiviste Clan - known for being able to read a person's memories by drinking their blood, was all but eradicated. Noé Archiviste was the only known remaining member. Noé was found by an elderly couple, Elaine and her husband, who decided to adopt Noé until his parents came for him; ultimately becoming Noé's adoptive grandparents. Noé's adoptive grandfather told him about stories of Vampires, explaining to him how, just like with humans, there were those who were good and bad among them.

Noé's adoptive grandfather became ill and passed away. Sometime later, Elaine died peacefully in her sleep. (Elaine (†) , Noé's Adoptive Grandfather (†)).

While picking flowers to put on the graves of his adoptive grandparents, Noé was kidnapped by Vampires, who commonly brought humans to Altus to be sold as slaves. When it was revealed that Noé was in fact a Vampire instead of a human, he was brought to a number of places before finally being purchased by The Teacher. The Teacher then proceeded to bring Noé to his castle, where he taught Noé about Paracelsus and his Formula Theory and how it gave way to the existence of Vampires. At the same time, The Teacher reminded Noé that his true name shapes his very existence, and so he must never allow anyone to take it from him. The Teacher then introduced Noé to two of his grandchildren, Louis and Dominique de Sade; with Louis informing Noé that The Teacher's interest in him made him very unlucky.

While The Teacher was out, Louis and Dominique bonded with Noé after learning of his upbringing; becoming Noé's closest friends and spending much of their time together from that day forward.

Dominique learned that, as an Archiviste, Noé could read another person's memories by drinking their blood. When Dominique had Noé read her memories, most of what he saw are fond memories involving himself. Though when Dominique and Noé forced Louis to partake in it as well, Noé experienced how alone Louis felt and grew worrisome.

Noé, Dominique and Louis met Mina, Gilles, Fred and Fanny - who were other young Vampires from a neighboring village - while playing in the forest one day. Together the seven young Vampires discovered an abandoned church and declared it to be their secret base.

While searching The Teacher's collection room, Louis revealed to Noé why he'd been left to live with The Teacher. Noé asked if he didn't want to see his parents ever again, which Louis harshly denied; believing that as far as they're concerned, he was already dead. Louis then came across a small notebook that had been left open, reading from it to discover reports from The Teacher about him in relation to the term Curse-Bearer.

Later, on the night of a Blue Moon, The Teacher provided Noé with a book about Vanitas of the Blue Moon - detailing how the Blue Moon was a symbol of Ill Omen and that it drains the power of Vampires of the Crimson Moon. Additionally, Vanitas of the Blue Moon had created a curse within a grimoire called The Book of Vanitas, that was said to be capable of bringing about the eradication of the Vampires of the Crimson Moon. Even so, Noé never understood why Vampires were meant to hate the Blue Moon, instead considering it to be beautiful and becoming fascinated with the legend of Vanitas of the Blue Moon. Noé then sought out Dominique and together they sat beneath in the castle courtyard to enjoy the Blue Moon's beauty.

With Noé and Dominique distracted, Louis asked his grandfather what a Curse-Bearer was, revealing that he'd found the record The Teacher had intentionally left out for him. As The Teacher began to laugh, Louis asked if that was the reason why his parents had Dominique, in order to forget about his existence because he was a Curse-Bearer. The Teacher looked to his grandson, prompting Louis to ask what it was that The Teacher wanted him to do. Contently, The Teacher admitted that Louis had it all wrong, as there was nothing that he wanted Louis to do. In fact, The Teacher made a point of how Louis was free to do as he pleased; wanting only to observe the process and benefit from whatever Louis' will lead him to do.

Noé began to notice slight behavioural changes in Louis, as he became more distant. Louis would often gaze off into space, would contort his face sometimes while he was around Dominique and would even avoid speaking to The Teacher all together; sparking further concern within Noé. Louis also took to carving wood, something which he claimed the end result was a secret, as it was meant to be a present for Noé.

One day, while Mina played in the distance, Noé sats and read quietly alongside Louis; who asked him if he knew about the "Curse-Bearers". He goes on to tell Noé that his grandfather had once told him that a Curse-Bearer is a Vampire who becomes strange or violent out of the blue. Noé questioned whose curse it is, prompting an angered response from Louis - who stated that the answer was obvious as he slammed his hand into the tree they're leaning on and proclaims that Vanitas was to blame. As Louis's hand began to bleed, Noé asked if he was okay - only to have Louis lick the blood from his wound calmly and ask if whether or not Noé would still see the Blue Moon as beautiful if he had one of the Curse-Bearers standing right in front of him.

Sometime after, Noé was sleeping in the forests of Averoigne someone approaches him, having heard that he'd not been drinking blood at all lately. Opening his eyes to see Louis standing overtop of him, Noé asked why it's such a big deal, as it is not as though he'd die without blood. Louis knew this much to be true, but admitted that he's curious as to the reason, as he knew that Noé liked blood as much as he liked tarte tatin. Noé reasoned that it is because he was an Archiviste, but before he can delve any further, Louis sat beside Noé and used his knife to cut into the palm of his hand; offering his blood to Noé. When Noé seemed wary, Louis told him not to worry, because even if Noé drank his blood, he wouldn't see anything new. With Louis' reassurance, Noé sats up and begans drinking his friend's blood.

Noé would later notice that Louis had begun making something else, with Louis admitting that he'd messed up and had to begin carving Noé's present anew. Knowing that something was wrong, Noé stopped Louis from carving further, desperately asking Louis what he could do to help. Before Louis could reveal that he was a Curse-Bearer to Noé however, Dominique burst into the room, revealing in a panic that she had heard the maids talking, but before she could say what they'd been talking about, Louis asked if Dominique was referring to Mina's execution to be held the next day.

Shocked, both Noé and Dominique look to Louis, with Noé asking why Mina was to be executed. Louis bluntly revealed that it was because Mina was a Curse-Bearer, which confused Dominique, thus Louis coldly revealed that Curse-Bearers were to be executed by The Bourreau, as that was the rule. Noé finds himself in disbelief that Louis had already known about Mina, though Louis doesn't say anything, prompting Noé to vow that he would go and save Mina right away. Louis however told Noé not to be a fool, asking how he could possibly save Mina when he knew it was impossible to erase the curse of the Blue Moon. Noé asked how Louis could talk like that, with Louis brushing it off as mere fact, only for Noé to retort that they can't know anything unless they try. This set something off within Louis, who asked if Noé if he was saying that he could do it, if he could cure Mina, grabbing Noé and insisting that if he's so sure, then he should do it right then and there. Realizing what Louis had said, Noé just looked to his friend in disbelief. Louis then put Noé down and blankly confirmed what he'd already said, that there was not a single thing that Noé could do.

Upset, Noé pushed Louis away and left the castle with Dominique; the two intent on rallying Fred, Gilles and Fanny in order to help Mina escape her execution by hiding her in their secret base. Louis would later learn about his friend's absence, giving way to his fear for Noé and Dominique's safety. Wanting to protect his friends so intensely gave way to Charlatan's influence, as Charlatan had been waiting a very long time for such an opportunity.

Soon, Mina went rogue and killed Fred when he was attempting to calm her down. However, before she could attack Noé and Dominique, Louis arrived on the scene and threw Mina against a wall before ripping off her head. Louis then lost control himself, killing both Gilles and Fanny in pursuit of quenching his endless thirst for blood. Setting his sights on Noé and Dominique, Noé apologized for his mistakes and begged Louis to return to his normal self. In a moment of lucidity, Louis requests that Noé kill him, knowing well that The Bourreau would do the same once they'd found out what he'd done. However, Noé informed his friend that he couldn't do such a thing, instead holding Louis in his arms as Louis went rogue and went in for the kill. Seconds later, Louis' head dropped to the floor, with The Teacher revealing himself to be responsible for his grandson's death; having taken on a monstrous form. The event causes Noé to consider his own gratitude for being alive to be absolutely abominable, crying alongside Dominique over Louis' corpse. (Fred (†) , Mina (†) , Gilles (†) , Fanny (†) , Louis de Sade (†))

Shortly after Louis' death, Dominique approached Noé with a chest that had been given to her by Louis; who'd asked that she deliver it to Noé when the time was right. Shocked to learn that the chest contained a large collection of stakes which Louis had intended to have Noé use to kill him, Noé blamed himself for Louis' death.

At an unknown point, Dominique teaches Noé how to dance.

Becoming Vanitas of the Blue Moon, the Vampire would soon have his own following in the form of the established Blue Moon Clan - from which he would feed. One of these individuals would go on to inherit the name of Vanitas from the Vampire of the Blue Moon, as well as The Book of Vanitas, after having been sealed with a Mark of Possession; through which Vanitas of the Blue Moon imbued Vanitas with a portion of his power so that he could use The Book of Vanitas to spread his curse. What the Blue Moon Vampire didn't realize is that Vanitas resented him for being imprisoned and fed off of for years, and instead would use The Book of Vanitas to enact his revenge against The Blue Moon Vampire by healing those afflicted with the Vampire's curse in order to tarnish the reputation of Vanitas of the Blue Moon.

By unknown means, Vanitas of the Blue Moon's curse would continue to spread through a group called Charlatan, with Naenia acting as its figurehead.

Luca's elder brother becomes a Curse-Bearer, and he vows to destroy The Book of Vanitas in order to end his brother's suffering. By unknown means, Luca meets Jeanne and Jeanne abandons her life as a Bourreau in favor of protecting Luca as his chevalier.

Thomas Berneux becomes a Curse-Bearer, developing the Malnomen of Loup Garou. As Loup Garou, Berneux would mutate in a cyclical fashion and stalk people in the night to drain them of their blood - succeeding in doing so nine times, which ultimately draws attention to Vampires, with many humans being confused as they'd believed the existence of Vampires was a mere myth.

2 Months Before the Plot

On her way home, Amelia Ruth finds herself lost in a thick fog that has surrounded her - unsure of where she is or how she got there. Then, numerous horrifying figures begin to emerge from the fog, amalgamations of claws, skulls, machinery and music. A path then opens in the crowd, opening Amelia's sight to a dark figure, Charlatan, who welcomes her to the Parade of the Charlatan. Screaming, Amelia attempts to run, filled with terror every step of the way, as she knows that Charlatan is something very wrong and that if he were to catch her, she'd be done for. Reaching a lamp post, Amelia feels as though she'd made a safe enough distance from Charlatan and puts down her basket for a moment so that she can catch her breath. However, Charlatan curls his body around the lamp post from above, ecstatic to have found Amelia. Charlatan opens its mouth wide and asks Amelia to show him her true name. At this point, Amelia is overcome with thoughts as she realized that Charlatan would defile her, break her and destroy her.

Over the course of the next two months, Amelia's symptoms would worsen, and she would eventually make contact with a doctor in Paris, Vanitas, who said that he could treat her. As such, Amelia made the proper arrangements and boarded La Baleine to venture to Paris.

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