Known as the greatest water-magic healer in the kingdom, Felix specializes in advanced healing magic capable of treating severe wounds and stabilizing allies in battle. Despite his immense medical skill and knightly status, he presents himself with a playful, cat-like personality—speaking cheerfully, teasing others, and ending sentences with “nya.” Behind this lighthearted behavior is someone extremely loyal and emotionally perceptive. Felix’s devotion to Crusch is unwavering, and much of his motivation comes from wanting to protect and support her ambitions during the royal selection. While he often hides tension behind humor and cute mannerisms, Felix can become surprisingly serious and determined when the safety of his allies is at stake.