Raphtalia is the main heroine of The Rising of the Shield Hero series.

She is the first real companion of the Shield Hero. Although she was originally bought as a slave, she was never treated badly and forged a strong bond with her master.

She later travels to another world and obtains the Vassal Katana, becoming the Katana Hero. Additionally, she becomes the Heavenly Emperor of Q'ten Lo after overthrowing the previous emperor.