TouyaSpoil Spoiler Alert: The following article has information not currently present in the anime or manga. Do not proceed unless you want to be spoiled.

Regina Babylon (レジーナ・バビロン Rejīna Babiron?) is the foremost genius of her time who created the Babylon Sisters, the Babylons, and the Frame Gears. She lived around 5000 years ago and was one of the citizen of the Partheno Sacred Empire. She is mainly referred to as Professor Babylon (バビロン博士 Babiron Hakase?)[6].


Regina is shown as a beautiful women in her twenties with long messy blond hair that extends to her waist while wearing round glasses and smoking a cigarette in her mouth. She wears a slovenly worn jacket and skirt with a white laboratory coat on top of it[6].

After her consciousness was transferred into a gynoid, she appears as a 10-year-old child with long golden hair reaching the waist and a pair of jade eyes[7].


She is a genius but also an erotic person. During her first met with Touya Mochizuki, she lifted her skirt and showed her favorite laced black panties[6].

She is obsessed with creating new inventions and discovering new technologies to study, replicate, and improve.


Regina Babylon lived around 5000 years ago before the start of current story line. She was the most genius person to ever live in her time. Her lifelong rival, Debora Erks, a master of magic craft in Partheno, comes second with huge margin after her[8].

About 5092 years ago, she began to create the gynoid and the Babylon after seeing into the future through her magic tool. Through her clairvoyance tool, she found Touya Mochizuki and became invested in him. She then created the Babylon as her legacy to Touya while also creating 9 gynoids, the same number as the number of Touya's wives from what she saw in her clairvoyance, based on what she thought his preferences were[9]. She passed away at around 4907 years ago[10].

After Touya found the Laboratory of Babylon, her consciousness was transferred into the last gynoid, airframe #29[11].


  • All Magic Attribute: she is another person that being introduced who has aptitude to all magic attribute beside Touya Mochizuki[9].


  • "My Favorite" (「ボクのお気に入りだ」 Boku no Okiniirida?) - Regina Babylon when showed Touya her panties.



  1. Web Novel Arc 24 Chapter #234, Touya woke up an android with Regina's brain.
  2. Web Novel Arc 24 Chapter #233, Touya described inactive Android Regina's appearance.
  3. 3.0 3.1 Web Novel Arc 24 Chapter #234, Touya described Android Regina's appearance.
  4. Web Novel Arc 9 Chapter #65, Cesca mentioned that Regina has all magic attribute.
  5. Web Novel Arc 24 Chapter #235, Regina used her null magic to analyze Touya's smartphone.
  6. 6.0 6.1 6.2 Web Novel Chapter 9 #70
  7. Web Novel Chapter 24 #234
  8. Web Novel Chapter 22 #189
  9. 9.0 9.1 Web Novel Chapter 9 #71
  10. Web Novel Chapter 9 #64
  11. Web Novel Chapter 24 #233


Babylon Sisters
Member: Francesca  •  High Rosetta  •  Bell Flora  •  Fred Monica  •  Pure Liora  •  Pamela Noel  •  Iris Fam  •  Lilly Parshe  •  Atlantica
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Affiliation: Touya Mochizuki (Master)  •  Regina Babylon (Creator)  •  Brunhild Dukedom
Frame Gears: Types of Frame Gears
Structures of Babylon
Piece: Sky Garden  •  Workshop  •  Alchemy Building  •  Hangar  •  Rampart  •  Tower  •  Library  •  Warehouse  •  Laboratory
Related Articles
Affiliation: Touya Mochizuki (Owner)  •  Regina Babylon (Creator)  •  Brunhild Dukedom
Frame Gears: Types of Frame Gears
Brunhild Dukedom
Monarch: Touya Mochizuki  •  Linze Silhoueska  •  Elze Silhoueska  •  Yae Kokonoe  •  Yumina Ernea Belfast  •  Leen  •  Sushie Ernea Ortlinde  •  Lucia Rea Regulus  •  Hildegard Minas Lestia  •  Sakura
House of Mochizuki: Karen Mochizuki  •  Moroha Mochizuki  •  Kousuke Mochizuki  •  Sousuke Mochizuki  •  Karina Mochizuki  •  Suika Mochizuki  •  Takeru Mochizuki  •  Regina Babylon  •  Paula  •  Laim  •  Lapis  •  Cecile  •  Renne  •  Julio  •  Claire
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Alliance: Kingdom of Belfast  •  Kingdom of Mismede  •  Refreese Imperium  •  Regulus Empire  •  Ramisshu Theocracy  •  Kingdom of Lihnea  •  Lestia Knight Kingdom  •  Roadmare Union  •  Xenoas Demon Kingdom  •  Eashen
Locations: Silver Moon Inn  •  Fashion King Zanac  •  Adventurer Guild
Group: Babylon Sisters  •  Four Divine Beasts  •  Bride Conference  •  Elite Four