Erina Shindou

Erina Shindō (神堂 慧理那 Shindō Erina?) is one of the main characters of Ore, Twintail ni Narimasu. series.
Erina is the student council president of Yōgetsu High School. One day, when Soji first transformed into Tail Red, she was attacked by the Ultimagill the moment they appeared. Upon discovering Sōji and Aika Tsube were Tail Red and Tail Blue; Erina was given The "Yellow Hope" Tail Gear and transformed into Tail Yellow (テイルイエロー Teiru Ierō?).