Francis hails from Kirievir's noble lineage, standing 185 cm tall with a slender 69 kg frame, slate blue hair, and violet-blue eyes. Born March 12 under the Pisces sign with AB blood type, his family includes his mother and younger sister Claire.

His past as a psychotherapist stems from childhood trauma: partial memory loss caused by the shock of his father's accidental death. This unresolved grief shadows his current role as Guardian of Darkness, where he wields shadows to bring sleep and comfort.

Outwardly gentle, refined, and elegant, he comforts others with a practiced smile. Yet beneath this façade, he deliberately conceals emotions, describing himself as metaphorically "full of holes"—a reflection of his emotional fragility, self-perceived inadequacies, and lingering depression.

He enjoys piano melodies, the scent of roses, and sipping tea at dusk. His preferences include white wine sherbet and gin with lime, while he avoids liver. Initially, he idealizes women as goddesses.

Meeting protagonist Ange sparks profound change. She pierces his polite veneer to perceive his genuine emotions, prompting him to gradually open up. He evolves into someone more considerate, brave, and loyal, shifting from a masked existence to finding purpose in serving others.

His feelings for Ange deepen from camaraderie to romantic love. He grows distracted by thoughts of her, drawn inexplicably to her presence, and experiences jealousy witnessing her interactions with Arios. Ultimately, he confesses his love, asking her to stay after her mission concludes.

He is also revealed as the reincarnation of Rakin from *Koi suru Tenshi Angelique - Kokoro no Mezameru Toki*, adding karmic depth to his identity.