Tio Plato
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Tio Plato CS3

Tio plato ao

Tio plato zero-evo

Kanji ティオ・プラトー
Rōmaji Tio Puratou
True Name
Age 14 (Ao/Zero/Akatsuki)
15 (CS2)
16 (CS3)
Date of Birth
Race Human
Gender Female
Eye Color Light Green
Hair Color Aqua
Weapon Orbal Staff
Relatives Unknown Parents
Orbment Water
Affiliation Crossbell State Police Department
Special Support Section
Epstein Foundation
Occupation Police Inspector
Engineering Chief
Piloted Units
Main Game
Zero no Kiseki + EVO
Ao no Kiseki+ EVO
Trails of Cold Steel III
Other Media
Voice Actor(s)

I do have interest in the Reeves II Campus and Class VII, and especially "whom" Lloyd fought.
—Tio's intro quote, Trails of Cold Steel III

To be accurate, I'm not a police officer, but a tester sent by Epstein Foundation
—Tio's intro quote, Zero no Kiseki

Tio Plato is a main character and a a heroine of the The Legend of Heroes: Zero/Ao duology. Tio is one of Epstein Foundation's orbal staff testers, similar to other orbal staff testers in the series, she writes a general report of her usage with it. She is good friends with Juna Crawford, having encountered her a few times in the past, especially in Liberl.




Character Profile

Little is known about her past, but she worked as part of the Foundation's research team since early childhood due to her genius. After reaching 14, she was transferred to Crossbell State in exchange to establish the Police's newest division, the Special Support Section. In truth, she enrolled as Epstein Foundation's tester for the new Orbal Staffs while researching on the "Eion System", a link system which is said to enable the “resonance connection of info-processing” between humans and machines.

Overtime with her new friends, Lloyd, Elie and Randy, Tio solved a variety of cases while confronting her traumatizing past against the D∴G Cult. After the incident, she began to open up more than being the team's techno-operator, but more closely to Lloyd, the younger brother of her savior.

After Crossbell was annexed, Tio was temporarily called back to Foundation HQ, but decided to return to Crossbell for her friends's sake. Although under surveillance by the Imperial Intelligence Division, she still keeps ahead of all research as engineering chief while simultaneously working behind the scenes as a “liaison.”



  • According to Estelle during their first meeting, she giggled about her and Lloyd's names being the same as her friends came home in Liberl.[1]
  • As of Ao no Kiseki, Tio became the 3rd party character to utilize a mecha as her S-Craft.


  1. Zero-Ch01: A Wolf Day Afternoon cutscene

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