OVA
Description
Lucas Rihavein is the King of Aldegyr Kingdom, a position that places him at the head of a sovereign state within the world of Strike the Blood. He is the husband of Polifonia Rihavein and the father of three children: La Folia Rihavein, Rondo Rihavein, and Passakalia Rihavein. He is also the brother-in-law of Kanon Kanase. Lucas appears primarily in the story arc associated with the Valkyria no Oukoku-hen OVA, where his actions significantly affect the course of events in the Aldegyr Kingdom.

In terms of personality, Lucas is portrayed as a cold, calculating, and highly strategic individual. He is analytical and logical, often preferring to work independently and relying on his own judgment. He values competence and intelligence, and his demeanor can come across as intimidating to those around him. Despite this initially antagonistic exterior, he possesses strong loyalty to his family and is willing to go to great lengths to protect those he cares about. His motivations are rooted in the welfare of his kingdom and his family, though he often operates with hidden agendas that make his true intentions unclear to outsiders.

His role in the story is that of a supporting character who initially appears as a potential adversary to the main protagonist, Kojou Akatsuki. However, as events unfold, he reveals a more complex alignment, ultimately confirming the marital relationship between his daughter La Folia and Kojou during the Aldegyr Kingdom incident. He serves as a formidable figure whose presence creates tension and uncertainty, and his decisions have lasting implications for the political landscape.

Lucas Rihavein is a powerful and skilled mage. He is highly proficient in both magic and combat, and he carries a staff embedded with a crystal ball that he uses to cast spells. His abilities as a mage are formidable, and he is noted for his strategic thinking in battle.

Regarding his development, Lucas evolves from a seemingly antagonistic and mysterious figure into a more nuanced character whose protective instincts toward his family become evident. His interactions with Kojou and other key characters reveal his capacity for cooperation when the interests of his kingdom are at stake.