Brunhilde (ブリュンヒルデ)

Brunhilde is the oldest of the 13 Valkyrie Sisters. She stood up against the Gods in attempt to save the humans. She is the main protagonist of the series as she chooses humanity's finest and strongest warriors to stand up against the gods and slay them.

(Source: Shuumatsu no Valkyrie: Record of Ragnarok Wiki)