Aya Tomoe

Aya Tomoe (巴あや, Tomoe Aya) is one of the prisoners in the Haguro Prison. Her inmate number is LB0005. Her "base" is the culprit of the "Tsuyama massacre", Mutsuo Toi.

Appearance
Aya has short blue-purple hair with two long strands in the front. She wears a white headband, and the standard Haguro uniform when in her daytime personality in the prison. When her base model takes over, Aya sports an unbuttoned black coat that reveals her breasts; and black pants. The headband also equips two extra headlights tied to it. She also has bandages wrapped on her two legs, connecting with the pants. Aya carries a katana with her.

Aya stands out beause of her small chest size, and she is often referred to by other characters about being "flat-chested".

Personality
Her daytime personality is mostly reserved, she doesn't talk much and keeps a composed face. She is also quite level-headed and doesn't show her emotions often. When her murder model takes over, this straight-faced side of her is still kept, but is presented with a new ruthless murderer side in combat. Aya is straightforward and hates slowpokes or beating around the bush. Should someone made fun of her being flat-chested, that would further impel her will to kill them.

Background
Aya is the culprit behind the "Hinata Village Massacre" where she killed and wounded more than 20 people with an axe or knife. In actuality Aya was one the many killers in Hinata Village who partake in the massacre, as she killed all the other killers she took the blame for their crimes.

Aya was born and raised in Hinata Village with her single mother, ever since she was a little girl she would see her mother sleeping around with different men while she left alone. In her free time she would explore the country side, climb trees, fish by the river and play with insects. She even went to the library hoping one day to learn swordsmanship.

One afternoon she was waiting by a bus stop when she was attacked by three young boys who attempted to rape her. When she was almost violated the Male Doctor came to her rescue saving her from the boys, after he gave her a medical checkup he attempted to make her laugh with silly faces. Although it failed Aya quickly grew fond of the Male Doctor as he put effort into making her smile, he quickly introduced her to a VR set in which she could learn and practice her swordsmanship unaware of the grim fate that awaited her by him.

Abilities
Aya, among the prisoners, is regarded as one of the strongest (if not the strongest) Medusa, with her talented combat experience and the meticulous side inherited by Toi Mutsuo. She excels in melee combat and is extremely gifted at it. Aya primary wields a katana, but sometimes also uses a butcher knife as a secondary blade and she could utilize long-ranged weapons like guns as well. During the Mirror Neuron breakout in Hinata village, it is revealed that the Toi Mutsuo in Aya had stored weapons, showing that his meticulous side has become her traits as well. Later in Chp. 162 in her fight against Sakuragawa Madoka, this trait has shown through her wielding a katana, yet stuffing a secret gun beneath the tsuka ("handle") of the sword.

Master Swordsmanship: Given her training with the VR headset during her early days, she was able to train and hone her swordsmanship to immense mastery. She is extremely adept with a katana, and can engage in close quarters combat with ease. Aya is highly proficient in her sword techniques, being able to slice and slash at high speed and with unrelenting strength. Not only can she use her katana for an offensive stance, she could also defend herself by deflecting projectiles, such as in her fight with Miina when she deflect her knives.

As shown during her battle with one of the high-ranking Yakuzas (which he was very fat yet very fast), as soon as she slowed his movement, she has demonstrated her formidable skills by cutting him at very high speed. In the same arc, Aya could also fight on the same footing as Karasuma, an ex-police yakuza who is also a swordsmaster, and he expressed his regret if he had to kill her, since she was the only one who could fight on equal footing with him. Katya, in Chp. 133, realized that the reason why Aya was so unusually strong was because she had prior killing experience beforehand in the mirror neuron breakout in her village years ago, unlike the other prisoners.

Enhanced Agility: Aya posesses excellent agility. She was born with a very athletic physique, which her nimbleness derived from. She could dodge blows, dash and charge towards a direction with high speed, climb walls to the 7th floor without even breaking a sweat (in Chp. 140) or spin her body mid-air, etc. This allows her to flexibly slash off or perform melee attacks with the most proficiency.

In Chp. 114, her nimble physique is further showed through her stealing the ball from Sakuragawa Madoka (who is a very strong Medusa and has destructive power), whilst Aya is sitting on wheelchair.