Caster (Fate/Grand Order - da Vinci)

Caster (キャスター) is a Caster-class Servant in the Grand Orders of Fate/Grand Order.

Identity
Caster's True Name is Reonarudo da Vinchi. A genius referred as almighty. An individual from 15th~16th Century Europe. A prominent genius who caused much impact on the advance of civilization and carved his name on human history. He has been recorded as a peerless pretty boy, a peerless handsome young man, but this is the actual state of things. Before a true genius, gender and age are rendered meaningless. Doctrine and fashion may change with the age, but there is only one truth. Whatever happens, Da Vinci-chan is the unrivaled almighty!

There is a statue of David that was made having his adolescent figure as a model.

Appearance
While a male normally, Caster says that represented the ideal beauty she pursued during her life, so she feels nothing wrong in having become that beauty itself.

Personality
While extremely intelligent, Da Vinci is also humble and kind to those around her, though she is more than willing to boast of her greatness when reasonably allowed. She is able handle grave matters like Mashu's deteriorating conditions and the havoc caused by Solomon with a gentle, but understanding attitude.

However, she is not without her eccentricities. Da Vinci seemingly possesses a great affection for birds and subjects related to them. For example, when creating a vehicle to cross the deserts in Jerusalem, she adds a multitudes of the wings designs found on many of her previous inventions and dubbed the vehicle the Ornithricopter. She also keeps a beautifully crafted mechanical bird perked on her shoulders at all times.

She has a penchant for eavesdropping, especially when Dr. Romani is talking. There is also her habit of putting on a pair of glasses when activating her Noble Phantasm.

Rational, yet placid. However, at things that are very interesting to her, she will jump at it with sparkling eyes. A type of genius that accurately grasps one’s abilities. What she can do, and what she cannot do. What others can do, and what they cannot do. Basically, because she can grasp (calculate) and speculate/observe everything with merely a glance, she is always composed. The point is, one should be composed and without being any different than usual, even if one falls into a desperate situation with no escape, and it’s no good if one doesn’t be careful. For her, the “unexpected” doesn’t simply occur, and even if it does occur, she completely assesses with great interest that rare situation. Just because it is said that she puts on a face that grasps anything, one should not be restricted, nor is it good, to completely rely on her.

The fact that her current self is in a young female body is something she is relatively unaware of. After taking a bath, she is the type to prowl around as she likes while naked. Regardless of whoever is around.

After becoming a Servant of the protagonist, she considers the Master as a “pupil”, and she conducts herself as a “teacher”. If one would have to say it, they would say she is someone who has a familiarity similar to a “teacher who is close in age” to their pupil rather than someone who is a “great teacher”.

Fate/Grand Order
The third Heroic Spirit summoned by Chaldea. A Servant summoned when the Heroic Spirit summoning system FATE was still incomplete. It has been said that she was about to depart soon due to the system's instability, but she became interested upon learning Chaldea's circumstances and chose to take up residence in Chaldea due to Romani Akiman's persuasion. Da Vinci-chan then manufactured a duplicate puppet of herself and is remaining in the present age by insisting that it is her Master. She is doing exactly the same thing as Touko Aozaki.

Abilities
Her personal skills are 'Natural Born Genius' (天賦の叡智, Tenpu no Eichi?), Pioneer of the Stars (星の開拓者). Her Golden Rule (Body) (黄金律（体）) skill is the possession of a perfect goddess-like body, preserving beauty. Leonardo intentionally acquired this Skill when she "redesigned" her body as a female (Mona Lisa). Her Noble Phantasm is Uomo Universale.

She was a powerful Magus in her lifetime. There is nothing strange about it. It just means that she also possessed talent for magecraft, in addition to science, mathematics, engineering, natural history, music, architecture, sculpture, painting, inventing, weapons development, etc.

Creation and Conception
Shimokoshi is the character designer for da Vinci.