Berserker (Fate/Grand Order - Penthesilea)

Berserker (バーサーカー) is an Berserker-class Servant able to be summoned by the Protagonist in the Grand Orders of Fate/Grand Order. She is given the title Berserker of El-Dorado (エルドラドのバーサーカー).

Identity
Berserker's True Name is Penteshireia. She is the Amazon Queen who fought against Achilles, during the Trojan War, and was killed by his Diatrekhōn Astēr Lonkhē. Since then, because of awful amount of regret when Achilles killed her with his spear, this had made him hesitant for him to fight against female opponents.