Placido di Rubini

Placido is the younger brother of Crown Prince Renato and the second-born son of the Kingdom of Rubini. Known for his warm and unpretentious nature, he treats everyone as an equal regardless of status. Though he has long harbored quiet feelings for Aida—once betrothed to his elder brother—he has always conducted himself with proper decorum while offering steadfast support to Renato from behind the scenes. Throughout the story, the heroine Maria's uninhibited and unpredictable behavior frequently catches him off guard and draws out his laughter, establishing him as a gentle and remarkably tolerant supporting character.