Celica A. Mercury/Biography
Phase 0, Phase Shift 1, Phase Shift 2, Phase Shift 3, Phase Shift 4
Celica grew up and enrolled into the Mage's Guild on Ishana, becoming a student with average grades. In 2100, the Black Beast arose from Japan and the Dark War begun. Shuichiro was blamed for its appearance and he disappeared, presumed dead. Celica and Konoe grew much closer, but her sister's relationship with their father did not mend, leading to the sister bickering over the subject countless times. She became good friends with Trinity Glassfille, Konoe's best friend.
Konoe was chosen to become one of the Ten Sages - Nine. After the Canonization Ceremony, Celica and Trinity found the newly appointed Nine exiting the Ishanan Cathedral. Although Celica was disheartened that her sister had now changed her name, she was pulled into a giant embrace by Nine and told that no matter what, they would always be sisters, and that they would always love each other. Celica decided that they could celebrate by getting lunch together at the cafeteria.
At the cafe, the girls met Kazuma Kval, and Celica took an immediate shining to him, begging him to allow the group to sit with him. He allowed it, and Celica's happiness shone through the cold remarks that Nine was constantly dropping to the boy. As she ate spaghetti bolognese, Celica listened to Kazuma talk about classes. Before she could finish her food, Nine dragged her away and told her to stay away from him; Celica retorted and they bickered until a nearby television burst to life and ran the news that a Japanese survivor has been found. The sister's stopped in their tracks, but Kazuma fell ill - Celica attempted to help him, but her hand was smacked away and the boy ran to the infirmary.
Nine soon felt an unusual presence in downtown Ishana, so the trio of girls went to investigate. They found Kazuma in an alleyway next to a destroyed cobble road. She saw the boy was injured and offered to use her healing sorcery to recover his wounds but was rejected. Instead, the girls walked him back to his dormitory.
Together with Trinity, Kazuma, and Nine, Celica enjoyed a caramel cake and lemon tea in a cafe. She told the boy about her sister's incredible sweet tooth, telling him that her sickly sweet coffee is something she needs to relax her mind. She was then interrogated by her sister over her failing grades in lightning sorcery, but boasted of her ability to levitate for long distances. When Kazuma brought up Shuichiro, Celica and Nine began to have another one of their fights over the man, and both knocked tea over Trinity, causing her to greatly scold the two of them for their behaviour. Kazuma then ran away.
Celica was called out by Kazuma to the edge of Ishana. He dripped poison into her ear about Shuichiro possibly surviving in Japan, using the other survivor had been found recently as part of the persuasion. She learned that the survivor did not think he had been stuck within Japan for six years, but rather two because of a time distortion near a cauldron. Although hesitant, Celica learned that civilians could visit Japan, and it was not just a militarized zone. Excited, Celica also learned that there was a small hole in Ishana's barrier that she could escape through.
The young mage ran home and quickly wrote a letter addressed to Nine, Trinity, and Kazuma that told them that she would be going to find Shuichiro, but would return. She then excited through the barrier and used levitation sorcery to take her to a port that could ship to Japan. When she arrived, she stayed at a local hotel before making her way to the harbor. As she climbed a mountain to get to the port, Celica got lost, but she found a young man with a bright red jacket slumped against a tree. She immediately began to tend to him.
A mage who lived during the Dark War, and the little sister of the Six Heroes' Great Mage "Nine." By nature, she excelled at restorative sorcery and innately had an unconscious ability to surpress seithr, so Kokonoe summoned her into the present era as a "Chrono Phantasma." Equipped with an Idea Engine created by that same Kokonoe, the automaton Minerva waits together with Celica for a reunion with Ragna, who challenges his new trial with resolve.
A mage who lived during the Dark War, and the little sister of the Six Heroes' Great Mage "Nine." By nature, she excelled at restorative sorcery and innately had an unconscious ability to surpress seithr, so Kokonoe summoned her into the present era as a "Chrono Phantasma." Awakening in the unfamiliar city of "Kagutsuchi," she wanders with Minerva at her side and searches for one important to her, Ragna.
Jin was seriously injured from his fight against Ragna, and Celica tended to his wounds, staying close to his side. She did her best, but left to report to Kokonoe afterwards, bumping into Tsubaki and suggesting that she visit Jin to cheer him up. She was soon taken inside the Embryo with Minerva. 
She found herself in Orient Town in the 13th Hierarchical City of Kagutsuchi with Minerva. She came across a wanted poster of Ragna, and chirped to Minerva that they would find him and Kokonoe in the city.  Through Celica’s direction, they ended up in Bascule where they met Naoto Kurogane, he asked them for directions and described Raquel Alucard to them, although the young mage thought he was describing Rachel. They decided to travel together throughout the city.  She, Naoto, and Minerva were teleported to Ikaruga and heard Nine’s voice telling her to kill Izanami to claim her piece of the Azure. Worried for her sister, she immediately went to try and find her. 
Finally arriving at Yabiko, Celica explained to Naoto about Nine and the Dark War. She asked more about who Naoto was looking for, and began to realise that they may not be looking for the same person, and her own careless nature made her lose him in the crowds.  It took her a while to notice she had lost him, but she was soon enough distracted by finding Carl and Nirvana, the former with distorted memories. Because of said memories, Celica accidentally offended the young boy, and he ordered Nirvana to attack, but she relented as she, like Celica, knew the truth. Although upset that she had offended Carl once he left, she went on to try and find Naoto with Minerva reassuring her that she said nothing wrong.  Celica went ahead to assess the situation of the people’s distorted memories of Ragna, only managing to get inside the branch because of Minerva’s directions.  Hibiki found her, and they went together to Kagura’s office  – Kokonoe explained to her that she unable to find Celica because of the teleporter malfunctioning due to the mismatched coordinates of the Embryo.  She was upset with her niece’s decision to send Tager to capture Ragna.  She reunited with Ragna once he was brought back to the branch, and listened to Kokonoe’s explanation of the existence of the Corpus Sepulcro: Requiem, also learning that Nine’s transformed her father’s workshop into her own. 
She was later part of the strike squadron sent to Nine’s workshop. Celica watched as her sister beat Jubei throwing him at her and the others. She listened to her explanation of the world, the Prime Field War, and why she had created Requiem. Celica held Jubei as Ragna fought Nine, and rushed to her sister’s side when she was defeated.  Izanami arrived, and began assaulting the group and Celica watched as her sister used the Radiance of Extinguishment to activate Requiem and bind Izanami – she watched as her only sister died saving her, and was teleported out of the workshop using her sorcery to force Rachel into using hers, greatly reducing the time she had left in the world. church, although Celica was unconscious. Minerva carried her inside to a bed.  She awoke the following morning and made everyone breakfast and tea despite feeling generally odd.  Celica gave her permission for Minerva to takedown Requiem even if it meant her dying.  She watched the stars with Ragna later the night, and talked about Nine and her sacrifice. The following morning, Celica began to pass on, telling Ragna, Noel, and Jin that she was proud of them all before she finally died. 
- BlazBlue: Phase Shift 1, Chapter 1 - Island of Green Wisdom
- BlazBlue: Phase Shift 1, Chapter 2 - Cat of Crimson Sunset
- BlazBlue: Phase Shift 1, Chapter 4 - Doubt of Yellow Equilibrium
- BlazBlue: Phase Shift 1, Chapter 5 - Night of Black Betrayal
- BlazBlue: Phase Shift 1, Epilogue
- BlazBlue: Chrono Phantasma Official Site (JP), Celica A. Mercury
- BlazBlue: Central Fiction Consumer Edition Official Site (JP), Story - Celica A. Mercury
- BlazBlue: Central Fiction, Episode 001, Chapter 002 – 003
- BlazBlue: Central Fiction, Episode 002, Chapter 010, Sub Scenario 2
- BlazBlue: Central Fiction, Story Mode, Episode 004, Chapter 026
- BlazBlue: Central Fiction, Story Mode, Episode 005, Chapter 038
- BlazBlue: Central Fiction, Story Mode, Episode 007, Chapter 051
- BlazBlue: Story Mode, Episode 007, Chapter 054
- BlazBlue: Central Fiction, Story Mode, Episode 009, Chapter 064
- BlazBlue: Central Fiction, Story Mode, Episode 009, Chapter 065
- BlazBlue: Central Fiction, Story Mode, Episode 009, Chapter 065
- BlazBlue: Central Fiction, Story Mode, Episode 009, Chapter 067
- BlazBlue: Central Fiction, Story Mode, Episode 009, Chapter 069
- BlazBlue: Central Fiction, Story Mode, Episode 010, Chapter 078
- BlazBlue: Central Fiction, Story Mode, Episode 010, Chapter 081
- BlazBlue: Central Fiction, Story Mode, Episode 010, Chapter 082
- BlazBlue: Central Fiction, Story Mode, Episode 010, Chapter 083
- BlazBlue: Central Fiction, Story Mode, Episode 010, Chapter 085
- BlazBlue: Central Fiction, Story Mode, Episode 010, Chapter 086
- BlazBlue: Central Fiction, Story Mode, Episode 010, Chapter 087
Ragna the Bloodedge·