Mrs. Kuruoka is the wife of Yuukaku Kuruoka and mother of Tsubaki Kuruoka in Fate/strange Fake
Profile
Background
Before the start of the False Holy Grail War, her husband obtained the Godfelling Crossbow as a catalyst for summoning Qin Shi Huang.
Appearance
Personality
Mrs.Kuruoka is shown to possess the typical "Normal" Magus mindset, where she obsessively pursues the unravelment of the "truth" while disregarding everything else to accomplish this goal within both her lifetime and her families future generations and she herself has shown to possess absolutely little to no hesitance in doing whatever it took to accomplish this goal.
As such, her joining the False Holy Grail War is likely with the intent of wishing to reach the "truth" to the False Grail. And her obsession with unlocking the "truth" is also shown to be strong enough that she herself possess little to no hesitance to experiment on her own daughter to further her and her husbands Magecraft and has shown to possess little to shame or guilt in her having literally reduced her daughter to a comatose vegetable due to it and had no regrets in leaving her in such a state as long as her reproductive capabilities remained unaffected in order to use her to create a future heir for their family.
However upon being infected by False Rider and dragged into Tsubaki's Dream World, Mrs.Kuruoka's personality is shown to have been completely overwritten and changed by the latter due to Tsubaki's wish for them to become her ideal parents. Mrs.Kuruoka is shown to have become a completely dotting and loving mother who constantly gives Tsubaki attention and love by giving her gifts and baking her cakes. With the change of her personality was shown to have completely overwritten her previous goals and priorities as a Magus, as seen where she agreed with her husband that she had no time to be messing around with the True and False Holy Grail Wars and would instead rather focus on caring for her daughter together with her husband.
Role
Fate/strange Fake
Abilities
Although her abilities were never fully shown, it was stated that both she and her husband were both descended from powerful magical families and both possessed immense magical pedigree and aptitude for Magecraft. And with her having successfully analyzed and stolen parts of the overall mechanics of the Fuyuki Holy Grail War and successfully stolen a piece of Zouken Matou's Entomatic Magecraft and successfully adapted it for her own usage speaks highly of her overall skills and competence as a magus.
Another hint to her skills was the fact that after much trial and error, she and her husband were successful in creating their own unique method of altering flesh by using even smaller,microscopic insects. This pseudo-entomomancy in the form of magically-modified bacteria meant to be instilled within a young magus to amplify their Magic Circuits as they grow that successfully increased her daughter's overall Magic capacity and potential considerably, albeit at the cost of rendering her comatose.
Her abilities and powers were stated by Faldeus Dioland to have been high enough that only a magus with superior and immense skill and talent could have possibly taken control of her after the sudden shift in her personality and priorities to the False Holy Grail War.
Development
Creation and Concept
References