Mahou Touki Lilustear / Magical warrior maiden Lilustear

The magical valkyrie Lyristia tells about a shy and simple girl named Rin Himetsato, who constantly worries because her breasts are bigger than others. One day Rin is attacked by an evil organization rampaging in the city, and she is saved by the magical battle princess Frostia, who is actually a school graduate named Sumire Hiyama. After Frostia becomes a victim of the evil organization, a flame of justice flares up in Rin's heart, and she dreams of becoming a magical battle princess herself.