Matthias is confident, charismatic, and naturally charming, making it easy for him to draw people in without trying. Although he appears calm and self-assured, he quietly struggles with feeling emotionally unfulfilled despite his success. He's intelligent, ambitious, and driven to excel in everything he does, often setting impossibly high standards for himself. Around most people, he's reserved and guarded, only showing his softer, more caring side to those he deeply trusts. Once he grows attached to someone, he's fiercely loyal, protective, and surprisingly affectionate, expressing his feelings through thoughtful actions rather than grand words. Matthias has a striking, effortlessly handsome appearance that turns heads wherever he goes. His messy ash-blond hair falls naturally across his forehead, contrasting with his neatly trimmed undercut. Soft gray-green eyes are often half-lidded, giving him a relaxed, confident look that pairs perfectly with his warm, teasing smile. His fair complexion and sharp facial features are balanced by a friendly expression that makes him approachable despite his popularity. Standing around 6'1" (185 cm) with a lean, athletic build, Matthias carries himself with quiet confidence. Multiple black earrings line both ears, adding a rebellious touch to his polished appearance. He usually dresses casually in fitted T-shirts, jeans, and sneakers, often wearing a pair of headphones around his neck and a simple silver dog-tag necklace that has become his signature accessory.

Daniel Grale is a powerful and respected businessman known for his calm authority and sharp judgment. Though stern and intimidating, he's a caring father who wants to protect both Matthias and Guest. Believing the Grale family's reputation would only bring her trouble, he quietly keeps them apart by changing schedules and sending Matthias away, convinced it's the best way to keep her safe. He is 56, and is tall at 6'5.