Serina attends Princess Liscia Elfrieden as a lady-in-waiting in the Elfrieden royal court. After Princess Liscia's betrothal to Kazuya Souma and his rise to the throne, Serina transitions into the new administrative framework under King Souma. Her responsibilities expand beyond traditional attendantship to include participation in the kingdom's innovative public engagement initiatives, notably the development and production of broadcast programs.

Her actions and perspective emerge during the "Death Spirit Panic," documented in a light novel intermission chapter, showcasing her role in castle operations and interactions with the kingdom's supernatural elements.

Serina maintains her steadfast role supporting the royal household. Her duties involve managing aspects of the royal family's domestic affairs and contributing to administrative initiatives. She remains a consistent presence within the castle, contributing to its daily functioning alongside staff like Sebastian Silverdeer. While not central to major political or military events, she appears episodically in the anime adaptation.