Twoearle

Thouars (トゥアール) is an unknown girl that comes from another world, who claims Sōji Mitsuka to be the only man with the most potential of using Tail Gear, and entrusted him one to fight the monster, by transforming into Tail Red. She also gives Tail Gears to another chosen twintailed girls who has potentials, and oversee them.

On Volume 2, she joined Yōgetsu High School and form the Twintail Club together with Sōji and Aika.

Appearance
Thouars is an incredibly beautiful young woman with long eyelashes, large breasts, delicate pink lips, and long slender legs. She has long straight beautiful  silver hair, and sky blue eyes. Her clothing color is usually associated with white. She wears lab coat and mini skirt. Her height is 161 cm and her three-sizes are B:90-W:57-H:85cm.

Personality
Thouars ia a cheerful and carefree girl. She is exceptionally horny.

Background
Thouars comes from an alternate world and developed the Tail Gear bracelet based off technology that the Ultimaguil intentionally leaked, unaware that she was being manipulated into becoming a savior for the world in order to spread the twin tail attribute across the world so the Ultimaguil could later come and harvest it for sustenance. Becoming Tail Blue thanks to the Tail Gear bracelet she made, Thouars attempted to fight off the invaders but failed as the twin tail attribute completely disappeared from her world as she escaped to the world Soji and Aika lived in and intentionally relinquished her own twin tail attribute and created the Tail Gear that Soji Mitsuka/Tail Red uses to fight the Ultimaguil.

Chronology
In episode 2, she states that she is attracted to girls.

Powers and Abilities
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Relationships
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Trivia

 * Thouars' voice actress, Maaya Uchida, performed the anime's opening theme song "Gimme! Revolution."
 * Thouars always gets beaten up by Aika Tsube. because she always anoyed Aika for getting close to Soji