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Rato is a first described as an Alchemist Master by the Queen and as a Mad Alchemist who focuses on monster experimentation by the Slave Merchant. She is known for causing many problems in Foburei, but she claims that those who were too incompetent to understand her research fabricated lies and exaggerated her mistakes to turn it into something bigger than it really was, like any typical mad scientist character. She tends to jump sporadically from project to project depending on what grabs her interest similar to a certain Tailor.
Rato is said to be a maniac. She is the type of person that gets overly enthusiastic when it comes to research and will do anything and everything necessary in order to further it.
Her ideologies contain multiple contradictions. Discrimination is bad, but turning monsters into weapons is Okay. She wants to modify monsters to be stronger. Leaving the question does she like monsters or hate them?
She has long platinum blonde hair and tanned skin. She seems human based on her appearance and seems to be in her mid-twenties. What stood out stands out most is that she gives the impression of a sultry young lady in a white coat. In addition, Rat has large breast.
The reason she researches monsters and alchemy is because she spent her childhood learning about the science and devoted her life it so she could give power to monsters that came to her of their own accord. For that goal, she has traveled the land and studied various monsters. She has learned and assimilated various sciences and magics. Some may consider it illegal.
With the support of her rival alchemist, Tact exiled Rat from Faubley. The reasons being that their areas of study clashed, so it was quite a trial. His research and Rat’s contradicted one another. She objected to his idea of the airplane, and asked why he couldn’t just use Flying Beasts, or Gryphons.
- 「Faust Guard」 c180
The Rising of the Shield Hero
Devil of Shield Arc
Cal Mira Island Arc
Spirit Turtle Arc
Slave Supremacy Arc
When she is first introduced she immediately probed Firo’s body thoroughly. When Firo resisted she backed away and threw a needle at her which was able to subdue her momentarily. Unfortunately Naofumi intervened and stopped her from going any further. Thinking of the possible benefits Naofumi considered recruiting her to his village, but first he asked for her modus operandi to which she responded “My aim? It’s to create powerful monsters of course”. c149
She elaborates on what she meant by "to create powerful monsters". She argues that monsters are discriminated against because they are weak and that they are just as good if not better than humans if they are treated as companions able to combat the Waves of Calamity. In creating strong monsters she will be able to prove such a thing. Hearing that, Naofumi decided that she would likely be beneficial so he said he would allow her to stay and study in the village if she became his slave to which she unhesitatingly agreed, in order to gain Naofumi's trust. c150
World's End Arc
Towards the Legend Arc
The Christmas of Shield Hero
The Valentine of Shield Hero
The White Day of Shield Hero
The Reset of The Spear Hero Gaiden
Loop 1 to 3 - Tutorial Arc
Loop 4 - Silt Welt Arc
Loop 5 - Melromarc Arc
Loop 6 - Foburei Arc
- She likes people to hold high expectations of her.
- She has a strong dislike for dragons.