Seirei Gensouki 2 EP 12

In the world of Magic, there was a swordman with the name Rio. He is a young boy with a mysterious past about which no one knows. He has some powers that he has not yet discovered. During his journey, he found out about one of his childhood friends, Miharu. She got lost and now has no place to live. Rio promised to take care of her and protect her from everything. He faced huge troubles and challenges and from there he came to new bout his powers. He was struggling with his past and also had to protect people whom he cared about.