Aya

Aya is a Living Painting girl who, like many other people, was drawn into the world of Arbatel by the magic of the Grimoire and was a third year student at the Grimoire High School for a time. While Kimihito and his household girls were trying to discover Arbatel's true identity, Aya, due to her connection to books, was one of the three Liminal girls (alongside Maika and Shii-Mii) they suspected of being Arbatel in transformation, although this suspicion was ultimately proven wrong.

Appearance
Aya is a young girl with fair skin and slightly darker hair that hangs long down her back. Unlike most other Liminal girls, Aya has no special characteristics to indicate that she is a Liminal, and as long as she is outside of her picture frame, she is virtually indistinguishable from a human.

Aya's picture frame is fairly plain and the canvas inside the frame is rather dark but still bright enough to see Aya clearly when she's in the frame. Objects that Aya brought into the picture from outside, such as her self-painted picture, can also be seen.

During her stay in the grimoire, Aya wears the usual school uniform, consisting of a seifuku with a plaid skirt.

Personality
Aya is a very kind and gentle person. She is also a bit shy as she reacted embarrassed and flattered by her girlfriend's compliments and got a shock when her girlfriend jokingly said that Aya might draw a picture of her as one of her "precious memories", which ironically is what she had been painting. While Aya is shy at times, she isn't insecure about that as she showed her picture to her girlfriend as a token of love.

As revealed in Aya's future dreams in Chapter 80, she later wants to become a restoration artist in order to work with cultural societies on the restoration and preservation of paintings.

Skills & Traits

 * Master painter: Aya is a very good painter. As shown in Chapter 79, she can paint a faithfull portrait of her girlfriend.
 * Living Painting Physiology:
 * Picture: As shown in Chapter 79, Aya can leave her picture frame, whenever she wants. She can also bring objects to her or from her picture, like her girlfriend's portrait. It's not known, if Aya could theoretically live independently of her picture, but any danger to the picture would presumably have a negative impact on Aya's health.

History
Aya was one of the numerous people whose consciousness was absorbed into the magical world of the Grimoire High School by Arbatel, although the exact circumstances of how this happened are unknown. Like everyone else, Aya was brainwashed by the enchanted school uniform and really believed that she was a third year student at Grimoire High School. Because of her interest in painting and drawing, Aya joined the school's art club.

Nearing the end of her education (although this was probably just an illusion created by Arbatel's magic), Aya fell in love with one of the female club models after just one look. But since Aya was about to graduate, she felt the pressure to confess her love to the girl, so she secretly began to draw a picture of her to capture an important memory of her time at Grimoire High school on canvas.

Plot
Aya was first mentioned in Chapter 78 when Kuroko Smith tells the three unnamed Liminal girls (a Werewolf, a Vampire and a Frankenstein's Monster) about the Living Painting girl and that they fell in love for one of the art club models after just on look. After Kimihito, his household girls and the MON-team suspects that the Grimoire Arbatel is a shapeshifter, Aya comes under their suspicion since she, Maika, and Shii-Mii, are the only three Liminal girls at the school with a connection to books. Rachnera and Suu agree to secretly monitor Aya to find out if she really is Arbatel in disguise.

Zoological Classification
Living Paintings are a type of Liminal that looks like a picture, but is able to move within it's canvas. While Living Paintings are connected to their frame, they are free to leave their canvas and walk around outside of it at any time.

Trivia

 * Aya is the third Liminal girl in the series after Draco and Gill who is revealed to be a lesbian.
 * Although Aya is a third year student, it is unknown if Aya's consciousness was actually absorbed by the grimoire three years ago. Since the cases of unconscious persons caused by the grimoire were only known a short time before Chapter 74, it is also possible that Arbatel, using false memories from the enchanted school uniforms, led Aya to believe that three years had passed.
 * If Aya's consciousness was indeed absorbed by Arbatel three years ago, this would have been shortly or at least half a year later after the introduction of the Cultural Exchange Between Species Bill, as this bill had already existed for three years at the time of Volume 1.