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Earth Is a Twin-Tail World

A Twin-Tail Mystery?!

The Azure Surge! Tail Blue

Ferocity--Twin Battle!

The Third Twin-Tail!

Brake Release!! Tail Yellow

A Passionate Debut! Dark Grasper!

Erina's First...

Smash!! Chaosic Infinite

How Come?! I'm In Bad Shape.

Red on the Ropes

Twin-Tails Forever

Season 1

Animation

Action & Adventure

Comedy

Sci-Fi & Fantasy

Gonna Be the Twin-Tail!!

Souji Mitsuka is a first-year high school student who is obsessed with twin-tails. One day, a beautiful girl from a parallel world named Twoearle,  suddenly appeared in front of him and gave him the power to transform into the twin-tailed warrior Tail Red. With the Ultimegil organization attacking the planet, Souji now must fight in order to protect the peace on Earth.