Shana

Shana is a 13-year-old orphan who lives in a world where humans and "Gandharvas" coexist. Gandharvas are fire elementals who can possess humans and use their bodies as vessels. Shana is a "Flame Haze," a warrior who fights Gandharvas and prevents them from possessing humans. She has long black hair that reaches down to her ankles, and she wears a red and black school uniform. Shana is a powerful fighter, but she is also a tsundere, meaning that she is often cold and distant to others, but she secretly cares for them deeply. One day, Shana meets a boy named Yuuji Sakai. Yuuji is a normal human who is possessed by a Gandharva named Alastor. Shana is tasked with killing Alastor, but she finds herself unable to do so because she develops feelings for Yuuji. Shana and Yuuji must work together to defeat Alastor and save the world. Shana is a complex and well-developed character. She is strong, brave, and compassionate, but she is also flawed and relatable. Shana is a great example of a female protagonist in anime.