To protect the Earth, I will become a twintail!
Mitsuka Souji is a normal high school student who has an abnormal love for twintails. One day, Twoearle, a mysterious, beautiful girl who said she came from another world, appears before him. And at the same time, monsters arrive in the town where Souji lives!
“Fuhahahahahaha! All the twintails in this miserable world will be ours!”
They are creatures from another world who feed on human spiritual power, Element Energy. Twoearle entrusts Souji with the Daydream Armor "Tailgear," activated by his powerful twintail element, and he transforms into a young girl twintail warrior, TailRed!
From this day, an aberrant battle with TailRed and a little bit of transformation has begun!
Winner of the judges' award in the 6th Shogakukan Light Novel Awards.
