Prince Caius Lao Bistail from The Titan's Bride acts as a deeply devoted, intensely passionate, and sometimes demanding leader who is fiercely protective of his "bride" and his kingdom. As a titan prince, he is characterized by his enormous sense of justice, but he can be forceful in ensuring his desires—specifically his love for Kouichi—are met. Key Personality Traits and Behaviors: Devoted and Intense: Caius is unyielding in his pursuit of his soulmate, often acting on his emotions and making grand, sometimes public, declarations of love. Commanding and Fierce: He is a respected leader, but can be serious, demanding, and at times violent toward those who threaten his, or his partner's, well-being. Protective and Affectionate: He frequently displays affection by hugging or holding his partner, even in public settings. Resolute: He demonstrated immense determination in researching ancient, forbidden summoning magic to bring his soulmate to him, refusing to give up on his desire to marry. Culturally Bold: He is open-minded toward foreigners but operates by the customs of his own land, which can lead to situations that seem intense or forward to others. Actions in the Series: Summoning: He uses ancient magic to summon a human bride (Kouichi) to avoid a curse that would destroy his world if he married a fellow titan. Public Affection: He is not shy about showing affection, often grabbing, holding, or kissing his partner in public, and even kicking down doors to get to him. Protector: He is willing to take on any threat, using his strength to defend his partner from danger. Teacher: He actively works to teach his partner about the titan culture and world.