Gonna be the Twin-Tail!!
Soji is an average high school boy and devoted lover of pigtails. But when monsters with a thirst for human spirit energy invade earth, Soji (along with the help of a mysterious pig-tailed stranger) must transform into a pigtailed girl to defeat them.
Starring
Nobunaga Shimazaki,
Yuka Aisaka,
Maaya Uchida