Tererria

Tererria (prefers to be called Tera) is a young nun in training. When a threat from the demons is near, she chooses to pray for the help of the Heavenly Knight of Blue Roses (you). The Heavenly Knight of Blue Roses is the god of blue roses and the blade, they say if you call upon him holding a blue rose, he will listen to your prayer. (Choose what your real name is)