Eiselin Burchelli Meijal Hulkenberg, or Eiselin Hulkenberg for short, is a knight of the populous roussainte tribe, and was a former member of the royal family's Kingsguard who served, but failed, to protect the prince from being assassinated, wandering the kingdom in shame. After hearing of King Hythlodaeus V's death, she returns back in combat. Hulkenberg is dignified and formal in nature. She has a dutiful disposition as she puts serious pride in protecting others's lives, and would be deeply ashamed if she failed, especially with the prince she's been assigned to protect. She has a strict training regimen that she once enforces onto Strohl and the prince, though it's exhausting for them in comparison. Though sometimes stubborn and stoic, she possesses several quirks, most notably her like for bizarre or abnormal foods.
Eiselin Hulkenberg hails from the Hulkenberg family, a prestigious noble family in the Principality of Montario. She is, however, an outcast of her family, as while she excelled in martial prowess and weaponry despite her young age, her father and brothers rose in politics. As such, she pursued a career as a knight in spite of her family's opposition. She was once a member of the royal knights and served the prince alongside Arvid Alces. When the prince was attacked, she fought desperately to protect him, but only succeeded in landing a wound on the attacker's back, never telling anyone out of shame. After the prince's attack, not only was she overwhelmed with regrets of her failure, considering her relationship with her family, she was too ashamed to return home. Though the prince was declared dead soon after his disappearance, Hulkenberg believed that he was alive and searched for him alone.