Rzen Babirn is a genius magitech engineer and inventor from the ancient Partheno Holy Kingdom, living over 5,000 years ago in the world of *In Another World With My Smartphone*. Despite her current body being that of a ten-year-old girl, her real age is in her twenties, and her mind is that of an eccentric old man. She is the creator of powerful artifacts and the Frame Gear, weapons developed to fight the Frays invasion. Known for a teasing, quirky personality, she claims to be Touya Mochizuki’s eternal lover and enjoys pushing people's buttons. Rzen also has all magical attributes, a rare trait, and played a key role in the story’s world by using her foresight to help Touya and leave behind the legacy of Babylon’s ruins. She has a notorious mischievous side and a passionate interest in new technology, including Touya's smartphone from Earth.
Rzen Babirn is a blonde woman with messy hair and glasses.
She usually wears a lab coat in a lazy, unbuttoned style.
Currently, her body is that of a ten-year-old girl because her brain was transplanted into an artificial body called Number 29.
Even though she looks like a child, her true age from her original life was in her early twenties.
Rzen is a true eccentric and sometimes acts like an old, funny man.
She uses "boku" as her first-person pronoun, even though she is a woman.
Rzen loves making jokes and teasing people, enjoying their reactions.
She does not care about fame or how people view her.
She often acts on her own interests and is known for being moody.
Rzen enjoys flirting with Touya Mochizuki and often calls herself his eternal lover.
She is deeply interested in unusual or new things, especially technology from Earth.
Rzen Babirn was a key figure in the ancient Partheno Holy Kingdom, famous for her genius in magitech.
She created many important artifacts and the Frame Gear, a weapon to fight the Frays invasion.
About five thousand years ago, she used an artifact called the Jewel of Foresight to see into the future and learn about Touya Mochizuki.
She left behind the Babylon ruins and a lot of secret knowledge to help the future world and Touya.
Rzen has all magical attributes, meaning she can use every type of magic.
She is a master engineer and inventor, skilled in both magic and machines.
She built the Frame Gear and many other artifacts.
She also made the Jewel of Foresight, which can see the future through the eyes of a compatible user.
She is currently working on new Frame Gear models and magical gadgets.
Rzen is quick to learn and adapt to new technology, even helping to copy smartphones from Earth.
She claims to be the eternal lover of Touya Mochizuki, and is active as one of his official companions (recognized by his nine wives).
She has a playful, sometimes flirty relationship with Touya and enjoys his company a lot.
She is friendly with most Babylon sisters but tends to stand out because of her unique personality.
Her main romantic interest in her past life was Prerior, and she showed some signs of liking her.
The master craftsman Debora Elks from her original era viewed Rzen as a rival, but this was almost completely one-sided.
The Ancient Partheno Holy Kingdom
Rzen Babirn lived in the ancient Partheno Holy Kingdom over 5,000 years ago, where she gained fame as a genius magitech engineer.
She contributed greatly to the kingdom's prosperity by inventing artifacts and the powerful Frame Gear to fight a massive threat called the Frays.
Foresight and Touya Mochizuki
With the Jewel of Foresight, Rzen saw glimpses of the future and learned about Touya Mochizuki.
Knowing the world would face many dangers, she left behind nine special Babylon ruins and lots of magic technology to help future generations.
The Brain Transfer
After her time, Rzen's brain was moved into an artificial body in the Babylon "Laboratory," specifically the Number 29 unit.
She was in a sleep-like state for centuries until Touya Mochizuki awakened her by providing magical power.
Now, she lives again in a child-like body, but her mind is still the eccentric, flirtatious genius she always was.
Modern Inventions and Earth Technology
Rzen quickly became very interested in Touya’s knowledge from Earth, especially the smartphone.
She helped recreate a copy of the smartphone in her world.
She is also working with Touya to develop new versions of the Frame Gear and improve Babylon’s magical systems.
- Rzen is often called a pervert by those who know her, mainly because of her jokes and behavior.
- Despite being a genius, she has almost no interest in fame or recognition.
- She loves teasing others but is actually very loyal.
- Rzen prefers to be called "Touya’s lover," and is not shy about it.
- Her original romantic partner was Prerior, showing she has a diverse love interest history.
None.
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