Yukina Himeragi is a central character in the anime series 'Strike the Blood.' She is a Sword Shaman and an apprentice of the Lion King Organization, tasked with observing and managing the actions of the Fourth Progenitor, Kojou Akatsuki. Yukina is a diligent and serious individual, often showcasing her skills in combat with her Schneewalzer, a spirit spear. Despite her initial stern demeanor, she gradually displays warmth and care towards Kojou, forming a strong bond with him. Her character balances duty with personal feelings, making her an integral part of the series.