Trinity Glassfille/Biography

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Growing up in the Magister's City of Ishana, Trinity was enrolled into the Mage's Guild, being put into the same classes as Konoe A. Mercury and Kazuma Kval. She formed a close friendship with both of them, even though the two never interacted. Trinity excelled in her classes, especially within alchemy and defensive sorcery, and found herself becoming good friends with Konoe's younger sister, Celica A. Mercury.

Dark War

Phase 0, Phase Shift 1, Phase Shift 2, Phase Shift 3, Phase Shift 4

Celebration

When the Black Beast rose out of Japan and the country was devastated by a nuclear offensive, Trinity comforted Celica as she lost her father, Shuichiro Ayatsuki, although Konoe did not seem to care. She grew closer to Kazuma, becoming his only friend and expressed a concern that his memories had yet to return to him. In 2106, Konoe was chosen for the honor of becoming one of the Ten Sages, although she expressed a belief that Trinity was more deserving. After the Canonization Ceremony, Trinity and Celica took the newly appointed Nine out to celebrate in the Guild's cafeteria.

There, they met Kazuma, and both Trinity and Celica managed to convince Nine to set with him. The four of them enjoyed lunch together, although Trinity tried her best to make Kazuma comfortable despite Nine's constant insults. When Nine and Celica left, Trinity asked about his memory. She soon noticed that both Celica and Nine stood still watching the television as the news blared that a Japanese survivor had been found, and fell silent until Kazuma suddenly became ill and left.

Nine sensed an unusual force in downtown Ishana, so Trinity, Celica, and Nine went to the area to investigate. They found Kazuma with a deep wound within an alleyway that had been partially destroyed. They offered their help to him, but he rejected it, so the girls escorted him back to his dorm instead.

Concern

Two days later, Trinity visited the Great Library and found Kazuma inside it, desperately searching the contents of various books. She came to find him to express her worry over him not attending his classes as of late, and asked what he was trying to uncover in the library. He told her that he was trying to find something that could jog his memory, and he opened her heart to her, speaking the most he had ever said to anyone. Trinity murmured some sympathy, but when Kazuma asked her if she could ask Nine for access to forbidden texts within the Ishanan Cathedral, the young mage refused immediately, but did offer her help if she was capable of doing so.

Later that day, Trinity went to the boy's dorms to talk with Kazuma after being warned by Nine that she had again felt an unusual force at play. At the dorms, Trinity expressed her concern for Kazuma's well-being, and told him that if he was in trouble, she would come rushing to his side.

In the academy's courtyard, Trinity found Kazuma and invited him to a little cafe. She did not disclose that Nine and Celica would also be present, giving the impression that she was asking him on a date. At the cafe, she ordered a white tea and revealed to the boy that she thought he could do with some nice cake to unwind after all he had been through recently. Trinity listened to Celica talk about her failing grades, straining a smile as she heard some of the girl's reasoning.

Eventually, Celica and Nine began to fight over Shuichiro again, and as they slammed their fists into the table, it sent Trinity's tea all over her. She rose from her seat, scaring everyone and she gave them a seemingly endless speech on being kind to one another, and to everyone and everything around them. Kazuma then left, so both Trinity and Nine followed after him.

When they found the boy near the edge of Ishana in the dead of night, the girls asked him why he left. Kazuma came up with the excuse that he was looking for an acquaintance, and verbally hurt Trinity as she expressed sincere concern for his memories. She went back with Nine after she interrogated the boy, still hurt by Kazuma's accusation that she had used tracking sorcery on him.

The following morning, Trinity went with Nine to the boy's dorms after Celica left a letter explaining that she had gone to Japan. Nine was ready to kill Kazuma, suspecting that he was to blame, and it was only with Trinity's reasoning that she was able to get him to be spared from the Sage's wrath. Trinity gave him the letter to look at, and apologized for doubting him. Nine was forced to leave to attend to her duties as one of the Ten Sages, but Trinity stayed to apologize further until she also left.

A few hours later, Trinity waited for Kazuma in the academy's courtyard, and saw him attempt to enter the Cathedral. She stopped him, and he accused her of tracking him, telling her that he had suspected Nine had given the order. This accusation was true, but Trinity did not reveal it. Instead, she begged him to not enter the Cathedral as it was against their laws and grabbed his arm, telling him that she knew he was the reason why Celica left for Japan. She continued to beg him to not enter, saying that he was not acting like the Kazuma she knew. Tears welled up in her eyes, but Kazuma laughed, raised his hand, and unleashed a sorcery shock wave that knocked her into a nearby pillar. The impact immediately sent her into the unconscious.

When Trinity awoke, she was in her dorm room with Nine by her side. The Sage explained the situation and what had happened to her. Instinctively, Trinity asked about Kazuma, and Nine replied that he had entered the Cathedral and disappeared, although there were signs of a struggle. She then promised that she would travel with Nine to find Celica, but in her heart, Trinity desperately hoped to find something in their travels that could tell her about Kazuma's whereabouts.

Variable Heart

Jubei had organized to take a Prime Field device for Trinity to inhabit, planning to steal it from the NOL. The plot did not go as planned, and the device activated its backup personality after having been attacked by a Fuzzy. Trinity watched as Rachel teleported a group consisting of Bell, Mai Natsume, Taro Sasaga'e, Shiori Kirihito, and Kajun Faycott to the 11th Hierarchical City of Shinatsu. She asked Jubei and Rachel to allow her to monitor the situation with Bell since it is her responsibility.

Near the cauldron of the same Hierarchical City, Trinity interacted with Bell, being able to intervene thanks to her being so close to the cauldron itself. They talked, and Bell allowed Trinity to take over the body on the condition that she would be put into the Gallia Sphyras: Outseal. Now with a body, Trinity summoned Muchourin to her side, using it to help fight alongside Mai and Jin Kisaragi against the army of Fuzzy and Meifang Lapislazuli. As the fight when on, Mai was captured by the Meifang despite Trinity's warning. Eventually, Meifang was defeated by Mai, and Trinity escaped the premise, eventually meeting with Jubei. The two talked about the fairness of the situation, and she revealed to him that Bell will always be by Mai's side inside of the Outseal. Trinity began to cry over what she had done, saying that the next time she sees Mai, it would likely not be in the body she had just acquired.

Central Fiction

Trinity left Platinum, and found her way to the Arcus Diabolus: Bolverk, transferring her soul to the weapon. She eventually switched into the Mucro Algesco: Yukianesa, and formerly met Jin. They talked and she made a pact with him, using alchemy in order to make his body durable enough to fight – the only catch being that his body would eventually become completely unable to fight after an unspecified amount of time, but Jin still agreed to the terms. She was absorbed into the Embryo, but her memories were seemingly unaffected as she stayed by Jin’s side inside Yukianesa. Trinity became one of the chosen.

Eventually, she and Jin were transported to Ikaruga by Nine, who had told them both to kill Izanami to claim their piece of the Azure. She suggested finding Kokonoe, who could help them both in achieving their goals. Eventually, they found Platinum, whose existence had nearly disappeared. Thanks to Jin’s Power of Order, both Luna and Sena’s existences were perceived, if only for a while – Trinity herself was given a materialised body by Platinum, and she properly met them for the first time. The three of them later broke into a Sector Seven facility and retrieved data pertaining to Platinum’s body before escaping. She offered to adjust the body for Platinum, although doing so would mean that she would never be able to inhabit it again. Carl Clover found them, and offered to assist her so he could gain experience.

Platinum was now fully recovered and trio parted ways with Carl. They were by found Jubei and travelled with him to Yabiko after hearing of Nine’s hidden eleventh Nox Nyctores. Before they did so, however, they dropped Platinum off at the Kaka Village so she could be safe from harm, and gave her the task to materialise Hihiirokane before leaving her to her task. At Yabiko, she offered her expertise in alchemy to create a key that could be used to enter Nine’s workshop.

Trinity went as part of the strike squadron sent into Nine’s workshop. Inside, Trinity listened to Nine’s explanation of the world, the Prime Field War, her desire, and why she created the Corpus Sepulcro: Requiem. Ragna defeated Nine, and she, alongside the others, were assaulted by Izanami and Nu-13 but thanks to Nine’s use of the Radiance of Extinguishment to activate Requiem, they escaped but not before Trinity watched her best friend finally die.

Celica’s sorcery forced Rachel to teleport everyone out of the area to Celica A. Mercury’s Church‎ where Trinity chose to stay largely within Yukianesa without talking. She watched Celica die before she teleported back to Yabiko. Trinity watched Kagura and Jin battle Azrael and win, and then as the world entered the final stages of Doomsday, begging Jin to hurry and find the others. She watched as Susano'o was reborn in the world and when Hazama threw himself into the Boundary, his last words in the world remarking how much he hates her eyes.

In the exterior of the Embryo, Trinity helped Ragna and Jin defeat Susano’o, putting Jin inside the Unit after Ragna dragged Terumi out of it. She soon materialized clothes for Noel and took Jin out of the Susano’o Unit against his wishes. Trinity told Ragna that taking her dream would be impossible since it had already been realized, and she threw the Unit deep into the deepest part of the Boundary, thanking Hakumen for all he had done for her. Trinity’s spirit then finally passed onto the next life.