——You finally found me.
You don't have to feel guilty for abandoning me.
Because I've always been by your side.
| “ | Emma. | ” |
| “ | Well done. Your choice was correct. | ” |
(Tsukishiro Yuki)
Tsukishiro YukiisAcaciaA character from the game "The Witch's Trial of Magical Girls" and its derivative works.
Introduction
Tsukishiro Yuki is the hidden character and final boss of this game.
She is the only true witch to appear in this game, and the true identity of the "Great Witch" frequently mentioned in various documents, records, and discussions among the girls.
Harboring hatred for humanity, she devised a precise plan with the goal of seeking revenge against all humans.
The magical abilities of the 13 girls, as well as all the candidate witches who died while imprisoned in the past and those yet to be discovered, all originate from Tsukishiro Yuki.
Therefore, it can be considered that Yuki can cast all forms of magic.
Character History
Long agoWitches are a species different from humans. They are all magic users who can perform various strange magics. They do not age and can heal injuries and illnesses with magic. Generations of witches lived on the Island of Witches and noticed the existence and development of humans early on. They adopted a wait-and-see attitude toward humans, maintaining a life of seclusion from the world. The leaders of the witches are called Great Witches, a key position usually held by witches of outstanding status and talent. Tsukishiro Yuki was one of these Great Witches, considered by the witches to be the most talented in magic and the youngest among them. During her days living on the island, she adopted a human girlHikami Meruru, and treated her like her own family[1]。  As humans developed more rapidly, they gradually gained power that could rival that of the witches. Humans viewed witches as outsiders and feared their powerful magic. Eventually, humans launched an attack on the witches, killing almost all of them in that catastrophe. Tsukishiro Yuki became the sole survivor among the witches; harboring hatred for the humans who exterminated her kin, she decided to seek revenge against humanity. For a long time afterward, Tsukishiro Yuki stayed on the island alone, researching the best way to exterminate humanity. She eventually settled on a plan to develop a "Witch Factor" and spread it among humans. In Yuki's plan, humans infected by the Witch Factor would gradually mutate into mindless monsters—making every human witness themselves losing their sense of self due to magic spiraling out of control and starting to kill one another; that was Yuki's revenge. Tsukishiro Yuki used Meruru as the first test subject to test the effects of the Witch Factor. She intended to catalyze Meruru's witchification process, but Meruru's faith in Yuki was too steadfast, and combined with the poor effectiveness of the initial experimental Factor, Meruru did not successfully turn into a witch, but instead gained an immortal body like that of a witch. Feeling disappointed, Yuki set Meruru aside. Later, Yuki successfully created the ideal Witch Factor: it causes humans to lose their sanity and turn into monsters under mental stimulation, possessing terrifying regenerative and recovery abilities. It gradually drains the human soul, turning them into "Husks"—existences without a self—and then seeks the next host, endlessly. Yuki planned to spread this Witch Factor to all of humanity and initiate an era where humans slaughter one another, finally using the most special magic, "Witch Killer," to completely eliminate all humans carrying the Witch Factor, witches, and Husks. To achieve this grand revenge, Yuki left the Island of Witches and hid herself within human society. After Yuki left the Island of Witches, Meruru missed her every day. Upon receiving a request from the human side to manage girls with high concentrations of the Witch Factor, she transformed the Island of Witches into the current Witch Prison and designed the traps of Witch Candidates and Witch Trials, hoping to find Tsukishiro Yuki through this method. However, for some reason, she never figured out the correct method during these years; even though such trials continued for a long time, Meruru was unable to find the Great Witch she most wanted to see. Before the events of the main story For a period of time afterward, Yuki was often with Emma and Hiro. Emma's proactive kindness greatly surprised Tsukishiro Yuki and made her start to doubt for the first time whether her revenge was worth it. Hiro's iron-blooded persistence regarding what is "right" also deeply moved her. Ultimately, Yuki chose a method that "would not ensure absolute success" to execute her long-held revenge plan. Yuki began to deliberately guide those around her to bully her and subsequently staged her own death, taking the opportunity to leave trauma and mutual misunderstandings for Emma and Hiro. After losing her physical body, she monitored Emma in the form of a soul and gave Emma the Witch Factor containing the most special magic—"Witch Killer." From then on, Yuki entered a state of observing from the sidelines: everything would ultimately be decided by the actions of humans themselves. If Emma became a witch for any reason, then humanity would be destroyed by the effects of the out-of-control "Witch Killer." Otherwise, she would continue to wait for the next possible opportunity. Emma's ChapterTsukishiro Yuki is the narrator and the first-person perspective of Emma's arc. She remains hidden behind the scenes throughout Emma's arc and frequently guides Emma toward witchification. She said "Well done" to Emma at the moment the executions of the first and second cases ended, and appeared in Emma's dream during the daily life section of the third case: —Ah, Emma. I've been waiting for you. Then she split her mouth open in an exaggerated way, revealing a twisted smile (if you still can't imagine the scene at this point, please see below). Although the game never explicitly states it from beginning to end, it seems that Emma's fever was caused by this dream. It wasn't until the game's ending, through the photograph in Meruru's arms, that Tsukishiro Yuki's existence was officially revealed. She uncovered Emma's trauma and confessed the truth of her plan to Emma. Em ma  Under Yuki's catalysis, Emma quickly underwent witchification and eventually lost herself, becoming Yuki's tool for slaughtering humans. Yuki's plan finally succeeded. At the very end, she said she chose Emma because she wanted to see a girl with such a pure heart and beautiful smile in a "scene of slaughtering many, many people." Hiro's ChapterIn Hiro's route, it is explained that the pen that had been in the inventory throughout Emma's and Hiro's routes belongs to Yuki. Yuki's existence is occasionally mentioned by Hiro. Hiro cannot forgive Emma precisely because Emma stood by while Yuki was being bullied. However, as time passed, Hiro noticed a sense of incongruity and eventually discovered that Yuki's true identity was the Great Witch. Yuki appears at the end of Hiro's route and states that she had been attached to Hiro's pen all along. Yuki coldly says that Emma dying would be a hassle, as she would have to find a new vessel to serve as a carrier for destroying humanity, and mocks Hiro, asking if he should help her as a friend. Yuki does not appear after that; it is speculated that in Hiro's route timeline, she took longer to execute her plan but eventually destroyed humanity. Witch's Rest ChapterTo save everyone, Hiro Nikaido, who forcibly activated Death Retrogression, uncovered the traumas of everyone one by one, catalyzed the other 12 girls into witches, and finally summoned the Great Witch Tsukishiro Yuki, beginning the final Witch Trial.  Yuki used her powerful magic to turn the island where the prison was located into a floating fortress, intending to immediately set about exterminating humanity after the trial ended. Yuki adopted an attitude of refusing to communicate with everyone, intending to end the conversation in a few words, but Hiro and the others pointed out that she needed to follow the trial rules she herself had set, starting the formal Witch Trial. During the discussion, the girls pointed out flaws in Yuki's plan: "She chose a method with a lower success rate to execute the plan," and thus finally deduced that she was actually in a state of intense hesitation about whether to execute the plan. |
Endings in the game
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Facing the verbal onslaught from the 13 girls including Emma and Hiro, Yuki finally frankly admitted her failure—she had long ago begun to doubt whether humanity should be destroyed, and this doubt reached its peak after meeting Emma and Hiro. She finally let go of her obsession with revenge and agreed with what previous Great Witches had said—"Compared to witches, humans are a species with more of a future." However, the imprisoned girls were still seen as threats and public enemies by human society and nations. To protect her best friend and her friend's friends, Yuki decided to reclaim all witch factors by committing suicide at this point in time. She turned the ceremonial sword into a spear and stabbed herself. Meruru Ikami suddenly rushed toward Yuki at that moment, and both their bodies were pierced by the spear, gradually disappearing into the air.  The ending animation shows a scene of Yuki and Meruru's first meeting, which may imply that Yuki used Death Retrogression magic to return to the past and lived in seclusion with Meruru from then on, no longer interfering with the human world. |
Trivia
- The name "Tsukishiro Yuki" is actually an alias used to replace a girl who happened to die in the same year.Hikami MeruruFrom beginning to end, she is referred to as "Lady Great Witch," meaning Yuki's true name remains unknown, or she might not have a name at all.
- During the investigation phase of Chapters 1-5, she secretly gave some warmth through the pen to Emma, who was almost unable to hold on due to the cold in the basement of the Water Spirit Room.
Yuki-chan, you're so kind! - When Yuki first began her confrontation with the 13 girls, she often spoke in archaic and pedantic language that was hard to understand, and she would occasionally strike strange poses during the conversation. It wasn't until later, after she opened her heart, that her speech gradually became normal.
Confirmed case of adult Chuunibyou- The pointing-up gesture becomes exponentially funnier when photoshopped onto a bus in fan creations.
- In many livestreams, because her gestures are so conspicuous, the chat and danmaku often post related emojis when Yuki makes the corresponding hand signs. ex: ❄️👌, ❄️☝️, ❄️👇.
- What Yuki said to Emma in Emma's arcOfficial record of madness.It is also often quoted to be used directly towards Emma as
material for "insane posting."（ ） - In the official setting, her specialties are somersaults and reciting curses.Just like that, the "coolness" Yuki accumulated in the game vanished overnight among the player base like the Witch Factor.
- The setting book states that Yuki likes being taken care of. Combined with her junior high description of "giving off an otherworldly vibe where no one knows what she's thinking, or to put it bluntly, being slow-witted and easily looked down upon," and Hiro seeing Yuki's shadow in Noah's behavior early in the second playthrough, we might speculate that Yuki was also cared for and disciplined by Hiro in many ways back then.
What a guardian-like relationship. - In the game, when Yuki's sprite has head movement variations like tilting her head, the hat does not move with her head, but instead acts like achicken headstabilizer, remaining absolutely still.
Just like Emma, the hat is the true body. - Severely low BMI.
Notes and External Links
- ↑ Described in the setting book as "an existence like a younger sister"
