Kuro Usagi's History
Black Rabbit (黒ウサギ Kuro Usagi) is one of the main protagonists of "Mondaiji Tachi ga Isekai Kara Kuru So Desu Yo?" and a member of the [No Names]. Black Rabbit is a Moon Rabbit and [Aristocrat of Little Garden]. The person responsible for summoning Izayoi, Asuka and Yō to Little Garden, Black Rabbit does her best to guide the children in their Gift Games though often falls victims to their antics instead.
Background
Black Rabbit is, possibly, the last Moon Rabbit after an attack by Azi Dahaka. When she was 10 she was to be given a name by her parents and named the 'heiress' of the Moon Rabbit tribe for being granted four of the ten divine gifts of the clan, being the fourth in the tribe's history to possess the Gifts. However, the attack from Azi Dahaka changed this and Black Rabbit was saved by Canaria, Leticia, and the Lion of the Sun, and hit on by Baron La Croix.
After the fight in which the Demon Lord was sealed away, Black Rabbit was adopted a few days later by Canaria and brought into the community.
Black Rabbit's community was attacked three years prior to the start of the story. The Demon Lord responsible won a Gift Game against the community and stripped both name and banner from them. As such the community's core members and many others were taken, leaving Black Rabbit, Jin Russel, Lily and 120 children to fend for themselves. Black Rabbit took up being the caretaker of the children and asked for help from Shiroyasha by working for [Thousand Eyes].
To save her dying community and hoping to restore the name and recapturing the flag, Black Rabbit sent out three letters to the outside world, summoning those with powerful gifts into the world of Little Garden.
Part 1
Volume 1 (Episodes 1-5)
Black Rabbit summoned the trio to Little Garden. Black Rabbit tried to do a welcoming speech, but the trio did not take her seriously at first due to their first impression of her as a person who has a hobby of cosplaying. Eventually they listened and she revealed the reason she summoned them was because of their gifts. While hiding the true goal for their summoning, she explained to them the Gift Games and started one to better explain the purpose and how the games work. All three of the humans were able to pass the game using a trick that caused Black Rabbit to feel devastated.
She brought Asuka and Yo to the outer gates, but was forced to travel to the Edge of the World to find Izayoi, who had left during the trip. Upon spotting him, she witnessed a Water God's defeat by the boy and the Water Tree that he had rightfully won from the challenge. The water tree was a Gift that really made her excited as it now meant that her community could have their very own source of water and did not have to travel long distances to fetch it from other Communities or rivers. However, her excitement only provided further confirmation for Izayoi's doubt about the true reason behind the reason for them to be summoned and he confronted her about it.
Black Rabbit realized that the secret couldn't be kept in the dark any longer had spilt the secret about the Community's current situation to him. To her relief, he had agreed to stay as their comrade though she had pushed his words of describing it as 'More interesting that way' kind of nagged at the edge of her mind away with her happiness.
Later in the day Black Rabbit was forced to accept the fact Asuka and Yo entered a Gift Game that was to occur the next day. She smacked them both with a paper fan in retaliation for their rash actions, but relented and allowed them to go through with the game once she realized she wasn't going to win against them. With the decision to get the problem children appraised, Black Rabbit took everyone, including Jin Russell, to Thousand Eyes, and there she was sexually harassed by her old friend, Shiroyasha.
While there Black Rabbit explains to the Problem Children about the gates of Little Garden and the Floor Master's responsibility to protect the district they are assigned to. She then bears witness to a Gift Game between the Problem Children and Shiroyasha after they challenge her to one. Black rabbit was shocked that Yo would bet her life in the game if she was unable to ride the Griffon, but was elated when Yo had not only won the Gift Game but also acquired the powers of a Griffon.
The group returned to the No Name Community grounds after the Gift Game, Black Rabbit planted the water tree and it refilled the reservoir. Shortly afterwards, Black Rabbit took a bath with Asuka and Yo, talking about the next days Gift Game against Fores Garo and various other stuff that she refers to as 'Girl Talk'.
During the Next Day she was to remain outside the grounds and had to rely on her ears to referee the game as the Geass Roll did not state she could enter the grounds, to which Izayoi calls her out for being useless, causing her slight grief. Once the game was finished, she was frantic about the wound You sustained and spirited her away back to the No Name Community to use several healing gifts to help mend Yo's wound.
Later that night, Black Rabbit reunited with her mentor/friend, Leticia, and was appalled to hear her Gift Game had been cancelled, and that reason for her visit was to ask for Jin to disband the community. Something that was impossible after getting to their current situation of spreading the challenge to all Demon Lords. Black Rabbit watched Leticia test Izayoi, and saved her when the crushed lanced was thrown back at her. Black Rabbit snatches the vampire's Gift Card and learns that all of Leticia's Divinity had vanished. Upset that this could even occur, she asked Leticia how it happened.
The talk was cut short as those from the Perseus community were sent to recover Leticia by using the Gordon's Gaze to petrify the vampire. Black Rabbit tried to negotiate with them, but was quick to anger when a member of Perseus insulted her community. Revealing one of her gifts, the Spear of Indra, she intended to fight the members of Perseus, but was halted by Izayoi tugging her ears. The members of Perseus vanished, forcing Black Rabbit, Izayoi and Asuka to confront the leader, Lauis, at Thousand Eyes office.
Laius took an interest in Black Rabbit and tried to get her to transfer to his community, this sparked Asuka and Izayoi to remark that her legs belong to them, with Shiroyasha getting into the act, ending with Black Rabbit smacking Izayoi with her signature paper fan. The conversation, when it was serious, took a turn for the worse with Black Rabbit contemplating trading herself for Leticia's freedom when she was offered the chance, something Asuka was against.
In order to obtain Leticia's freedom and prevent Black Rabbit from sacrificing herself, she proposed the legendary gift game Perseus would conduct, but declared it would take years to accomplish. Izayoi appears and reveals he completed the game, and Black Rabbit traveled to the Perseus Community, announcing that they are to participate in a Gift Game when she reveals the two treasures won from the Kraken and Gorgon.
As Judge Master Black Rabbit is to referee the battle while everyone fights their way to the arena. Before the start of the game Black Rabbit was surprised at Izayoi's knowledge given how he portrayed himself for most of the time. During the game she grew worried for everyone's sake, but was quickly changed as she was assaulted by an invisible Izayoi tickling her sides. She responded in her usual way: a paper fan attack.
When the mention of Laius not being the one to fight Izayoi, Black Rabbit feared the worst and those fears were confirmed when Algol was summoned. She was there to witness Izayoi dominate the fight, and when he smashed a beam that could petrify the world, she was flabbergasted, commenting that his gift can not only shatter Heaven and Earth but also the Stars. She announced the No Names as the winners once Algol was defeated.
Once Leticia woke from her petrified state, Black Rabbit was the first to greet her, and the first to be shocked at the vampire's willingness to be a maid for the Problem Children. The thought left her just as quickly as she decided to throw a party outside. The reason for this was because the Perseus flag would be removed from the sky. During the time when the stars fell, Black Rabbit talked with izayoi, which ended with the Problem Child declaring to place their flag in the sky, something that Black Rabbit agrees wholeheartedly with.