Chi/Chronology

Past life serving the Cult
Kai used to be the daughter of an elven noble who was once a member of Velgalta's Seven Blades as a spear wielder named Karen von Herzog from Velgalta Empire. Karen is also a former First Children who has become the 'Named Child' formerly known as the Shooting Star due to the Herzog Family which is an aristocratic family that has been close relationship with the Cult of Diablos for generations had been entrusted with the role of maintaining stability within the Empire and Karen herself was highly loyal to the Cult for the sake of the Empire's peace.

Betrayal
But in the year and a half ago, Karen had contracted a Demon Possession symptoms and she should have been handed over to the Cult. However, her family had neglected their duties as aristocrat resulting in the fate of the entire Herzog Family being purged by a fellow Named Child who was also one another member of the Velgalta's Seven Blades, Sergey Gorman the Storm Sword. At that time, Karen was momently caught by Sergey as he gouges out her right eye until she manages to escape despite her lost right eyesight and Karen puts an eyepatch on for the right eye socket that Sergey had gouged out.

Since after her family was destroyed, a malnourished Karen had been sleeping alone in a dumpster at the end of an alley with a curse spreading around her right leg was discarded and abandoned by society until she become forgotten, when she tried to escape the Empire to avoid Sergey's pursuit. Karen suspects that the order of purging her entire family had been decreed by the "Round Table Committee" which makes her feel unable to accept the fact that the Cult would go so far as to eradicate everything her family has built over generations that made Karen resent the Cult for their decision.

Although she was stricken with Demon Possession, Karen managed to escape from the imperial capital and continued running eastward until she reached the borderland near a remote corner of Madlid City, whilst being chased by Sergey who brings at least twenty subordinates he chose to capture Karen. With the injustice she felt, Karen is being giving reasoned with Sergey in asking the reason why her family had to be purged to which she should think that the Cult would still find value in the territories and wealth held by the Herzog Family, as well as leveraging their aristocratic influence even if she were handed over to the Cult.

However, Sergey answered that if Karen had been affected by these symptoms, then it would be natural for him to eradicate her entire family because what would be the point of a political base with a possessed child if he ruled the Empire. Realizing that the order to purge of the Herzog Family did not come from the decree at the "Round Table" decision, Karen forced Sergey to say who was the mastermind who ordered him, but he ignored her answer, which made Karen are willing to take revenge on this unforgivable act by intended to kill Sergey and his subordinates.

Despite her right leg was rotten due to possession symptoms, Karen is able to repelling the Velgalta imperial soldiers, but she could not stand against Sergey and was about to run out of fate. When got cornered after sustained quite injury, Sergey insulted Karen for her possession which he considered a curse, which made her say to him that he didn't know anything on the symptoms but it turned out that Sergey knew about Demon Possession which he even revealed his knowledge about Tears of Diablos and how they are created, even though he said things which Karen considered a betrayal because Sergey answered that knowing about it and sharing it with the Round Table were two different matters which made Karen think that Sergey is a traitor with intent to turned against the Cult.

When suddenly two children who called themselves Shadow Garden that were previously conducting an exploration survey to searching for oil fields appeared in front of them, Karen tried to tell them both to run away and told Sergey not to disturb the two of them who didn't know anything, even though he reassured her by saying that the strong presence of magic power emanating from the two children could not possibly be people from this remote area to which she agree her explanation until Sergey realized something after hearing the name of their organization by telling Karen that Shadow Garden is a mysterious organization that's been active recently causing skirmishes on Midgar Kingdom's outskirts.

Unable to defeat Sergey, the duo took Karen and escaped on a boat made of slime. At some point later, Karen rose through the ranks to become one of Shadow Garden's double-digit Numbers because her ability and strength are recognized by the Seven Shadows, to which she earn a "Named" Rank no. 22 and becoming Named Numbers when she would identify herself as Kai. Also, Kai established a strong and direct relationship with Epsilon, one of the original Seven Shadows, and worked together with Omega to become Epsilon's direct subordinates.

Sanctuary Infiltration
As the "Goddess's Trial" commenced in Lindwurm, Shadow Garden prepared for an infiltration mission, and Kai was present in the city. When Shadow suddenly made himself known to summon the memory of Aurora and concluding their battle with the result of Aurora's defeat along with the opening gate to Sanctuary at the same time, Kai was among the Shadow Garden contingent that followed Alpha, Delta, and Epsilon into the Sanctuary. Before entering the Sanctuary, Kai joined Omega by Epsilon's side as they taking Natsume Kafka a "hostage" and entering the Sanctuary, along with the Acting Archbishop Jack Nelson.

Inside, Kai and Omega followed Epsilon with a unit of Numbers to collect and gather all intelligence from the memory world they found within the Sanctuary, confirming some theories on the Cult's origins, learning new details, and understanding their motives much better. While the Slime Bodysuits were malfunctioning due to proximity to the core, Kai and Omega apparently imagined that Epsilon's (fake) breasts fell off and reattached, but when Epsilon was looking at them, they said nothing.

As their investigation mission are complete along with the information they collect from the Sanctuary, Alpha ordered all Numbers to leave which Kai complied and following her order to leave the Sanctuary, leaving Acting Archbishop Nelson to battle Shadow. Then, Shadow Garden's team was outside and Kai saw Shadow erased the Sanctuary using his "Atomic" spell. With the city flooded by the Sanctuary's destruction, Kai and Omega helped escorting Alpha and Epsilon out of Lindwurm with the intelligence they collected.

Bushin Festival Tournament
When her master Cid Kagenō comes to the Mitsugoshi Company for asking help in disguising himself so that he can participate in the Bushin Festival without explaining his reasons, Kai is seen together with Omega in operating the face-making machine created by Eta as she riding a bicycle that can activate a device for the facial profile changing machine to work. After Gamma had applied the slime make-up to cover his face and had chosen the face on Mundane Mann's character, Kai immediately started pedaling to start the Eta machine and began the remodeling process of modeling his master's face until finally Cid's new facial profile had changed to Mundane.

Following the events of the Bushin Festival that has occur in Midgar Kingdom learning when her master Shadow appear to saved Princess Rose Oriana from Perv Asshat's capture after the events being communicated by Eta, Kai is seen together with Omega and Epsilon as the three of them started their infiltration mission in the Oriana Kingdom's capital. Curiously, Kai sees Delta up on the roof, surveying her surroundings in finding her lord.

Orianna Kingdom Civil War
TBA