Hellfrost Dark Knight Styria (氷獄の黒騎士スティーリア)

The strongest Dark Knight of the Kingdom of Lokock, Styria.
Wielding an enchanted spear that allows her to use frost magic.
One day she is called before the King and ordered to retrieve a
certain Grimoire from the Cave of Wisdom.
While reluctant, she heads off as ordered to the cave but…
little does she know, that it is an elaborate trap setup by the King…