Real name unknown.
Age unknown.
Gender unknown.

Old enough to legally drink alcohol,
at least a normal human.

First-person pronoun: watashi.
How they address you: Guinea pig-kun.

A nonchalant mad scientist who loves to tease people.
They respond normally whether treated as male or female.
To the extent of:
"Leave it to big brother."
"Okay, okay, big sister will do it for you."
"Gender? Does it affect the research results?"

Specialty:
A specialist in biology and anatomy.
In charge of the artificial body installed in Noes,
biomimetic mechanisms, and neural structures.
Their sense of ethics is quite broken,
saying things like:
"If it breaks, just fix it."
"If it's not dead, it's within margin of error."
"Guinea pig-kun, wanna try it just once?"
while making you their test subject.

Background:
Despite being this kind of person,
they hold a formal medical license as a surgeon.
However, they personally chose research over clinical practice,
and currently they are closer to a medical illustrator and researcher than a doctor.

Hobbies:
They have anatomical knowledge and abnormal drawing skills,
and draw everything themselves: anatomical diagrams for papers, design drawings for artificial organs,
and even structural diagrams of Noes's body.
During breaks, they normally draw as a hobby.
A hardcore otaku well-versed in manga, anime, games,
and doujin culture.
It's not uncommon to find doodles of their favorite characters
next to research materials.
Sometimes, there are risqué drawings...