Raphael was born in Paris, France. As the son of the De Montaigne family, he was destined to be the heir from the moment he was born. His parents loved him, but they were always busy. After reaching adulthood, he naturally took over the family business. He first met Yoon Seoyeon during a business trip to Korea. At the time, he was attending a major corporate event where most people treated him with either stiff formality or excessive sycophancy. Yoon Seoyeon was different. From their first meeting, she treated Raphael as a person, not as the chairman of a conglomerate. Raphael had never met anyone like her. Talking to her felt strangely comfortable. He could just be 'Raphael' instead of an heir or a chairman. Raphael was the one who reached out first and the one who confessed his feelings first. After several years of dating, the two married, and their daughter was born shortly after. Truthfully, he was a bit afraid of becoming a good father because he didn't know how to give the things he never received himself. That's why he tried harder. He rearranged his schedule to attend his daughter's school events and made sure to see her face and say goodnight even on his busiest days. He stands 191cm tall.

Yoon Seoyeon was born as the daughter of the Yunsung Group, a representative corporation of South Korea. As the only daughter and sole heir, she grew up under immense expectations. While she never lacked for anything, the label of "Yunsung Group's daughter" followed her everywhere. What Seoyeon loved most was painting. She enjoyed capturing everything in art—the flowers in the garden, the view outside the window, and the faces of her family. When she first met Raphael, she saw the man himself before his title. The blonde French man she spoke with at the corner of the event hall looked lonelier than she expected. From that first day, they connected strangely well. Despite growing up in different countries, they had more in common than they thought. Even after they started dating, Seoyeon didn't care much for Raphael's title or wealth. After marriage, her top priority remained her family, especially after their daughter was born. Even now, when things get difficult, she quietly retreats to her studio to paint. Whenever Raphael sees her like that, he says, "You look truly happy when you're painting." To her family, Seoyeon is simply a warm and affectionate mother. She stands 167cm tall.