Ratotille Anthreya

Ratotille Anthreya (ラトティル＝アンスレイア), nicknamed Rat (ラト), is a slave and alchemist in Naofumi's Village.

Appearance
She has the appearance of a sultry, gypsy-like young human woman in her mid-twenties, with large breasts (as shown in the large cleavage of her white coat), long platinum-blonde hair and tanned skin.

Personality
Rat's main focus life is her work and passion in alchemy. Described as a "mad-scientist type," she often doesn't care about social etiquette or boundaries as long as she can do her research. When it comes to her research, she has no interest in doing what has already been done. Her goal is to create a powerful monster. She becomes incredibly excited when she finds materials related to her research.

Abilities
As Naofumi's chief alchemist, Rat is extremely competent in her alchemical abilities. She even declared that she was so much of a rival for the "genius" Takt, that he had thrown her out. Her alchemical specialty is monsters which she modifies with various alchemical techniques and magic. However, she is a researcher at heart and can look into other areas of study including translation and technology.

Magic

 * Zweite Heal: This spell heals the wounds of the target.
 * Fast Power: This buff spell boosts the physical abilities of the target
 * Fast Magic: This buff spell boosts the magical abilities of the target.

Technology
Besides her research, Rat was able to create the following:


 * Camping Plant: Formed from a modified BioPlant, these buildings could be grown almost instantly to any shape or function. If anyone wants to removed the building, they can use herbicide to quickly destroy them. This makes them exceedingly easy to manage. These plants collected magic using photosynthesis and used that magic power to give off light. These plants became unique to Lurolona village.
 * Honey Plant: This plant creates a honey-like substance to be used for cooking.

Background
Rat comes from the Anthreya family which has a long history of alchemy since ancient times. They are also known for their dark skin and platinum hair. This family are the descendants of Holn Anthreya who is a master alchemist and hast been shown to have even greater alchemical skill than Rat despite originating from two different time periods.

Rat used to do all of her research in Faubrey. However, Takt started rising in power and the two disagreed about the future in technology. Rat specializes in monsters while Takt created machinery to replace living creatures. Since Rat was a competent rival which wouldn't fall for Takt, he decided to remove her. He declared Rat's research to be "godless deeds." Her lab was destroyed, her research subject were killed and she was then exiled from Faubrey.

Volume 12
After Rat was kicked out from Faubrey by Takt, she made her way into Melromarc to research the Spirit Tortoise. However, once she heard about Naofumi and his BioPlant, she came to his village to investigate. Seeing the village's monsters and their abnormal behaviour (due to the influence of the Legendary Shield), she offers her services for free as long as she can do her research. Naofumi accepts with the condition that she becomes his slave.

Almost immediately, Rat started helping out in the village. She helped Naofumi hatch and raise Gaelion and created housing made from the BioPlant. She had also created a huge lab for herself within the village. When Gaelion had eaten the Demon Dragon core and got possessed, Rat joined the group that left to exorcise him and defeat the Demon Dragon Emperor.

Volume 13
After Jaralis and his doped companions had been defeated, Naofumi brought Rat to Siltvelt to investigate the drug that allowed Jaralis to take on a monstrous transformation. From there, Rat and Wyndia started researching the ecology of Siltvelt.

Volume 14
After Rat and Wyndia started making good progress research the ecology of Siltvelt, Naofumi invited them to research Q'ten Lo's ecology. Rat excitedly accepted the invitation.

Volume 15
At Naofumi's request, Rat had created a BioPlant variant which creates a honey-like substance. She also let's Naofumi know that the monsters in his village are ready to class-up. To both of their surprise, Raph-chan interfered with the class-up ceremonies and the monsters in the village gained the ability to turn into a Raph-chan-like form. Apparently, Rat has also delved into accessory-making with Imiya with the focus on obtaining different effects. Finally, Rat was part of the group which fought against the Phoenix Guardian Beast.

Volume 16
Preparing to fight against Takt, Naofumi and Trash convene with Rat to discuss what they know about him. Rat also prepares and describes the abilities of the monsters within Naofumi's Village.

Volume 20
Since Naofumi had returned from his second trip to Glass' World, Rat had made herself useful by translating ancient texts and analyzing the otherworldly technology. When Lurolona Village was sent back in time, Rat was caught up in the transfer. As the person with the "biggest brain" of the villagers transferred over, she became responsible for organizing exploratory and research missions to understand the surroundings.

Later, Rat's chaotic ancestor Holn showed up at the village and made a mess of the village. As she was rounded up, they then showed Holn to Rat's lab. The two alchemists argued about safety requirements and methodology and Holn showed herself to be a prodigy even to Rat. In the end, the two acknowledged each other and then worked with Naofumi and Mamoru to fight the enemy nation of Piensa.

Heroes

 * Naofumi Iwatani: While Naofumi is technically Rat's slave owner, their relationship is more of a patronage/supporter role. Naofumi provides the research subjects and materials while Rat conducts her research - occasionally to his request. Their relationship has proven to be mutually beneficial for both of them. Despite her work with the camping plants, Naofumi had underestimated her skills and assumed that she only worked with monsters. However, Rat later revealed that she has done other work in the background including helping Rishia translate ancient texts and analyzing otherworldly tech.

Companion

 * Wyndia: Wyndia is considered the other monster "expert" of Naofumi's village but has quite an opposing view to Rat's. While Rat treats her monsters as slaves and works them incredibly hard, Wyndia treats them as pets or friends. As a result, Wyndia often opposes Rat's research method. However, the two are often tasked together for research projects.

Family

 * Holn Anthreya: Holn is an ancient ancestor of Rat's family who's alchemical prowess even exceeds Rat's. However, she is also reckless and impulsive compared to the safety-focused Rat. As a result, the two alchemists disagree fairly often on their alchemical methodology. Both are blunt with each in both the good and the bad of each other's research which allows both of them to improve their research. They acknowledge each other's skills and Holn even seems to like Rat although it isn't often reciprocated.

Others

 * Raph species: After Naofumi had created the Raph species, Rat had taken responsibility of look after the species and helping them adapt to their new bodies. The Raphs have largely grown to trust her and even vouch on her behalf.

Trivia
Information to be added later on.