He is the grandchild of Marie Lucas who created St. Marie Academy to raise patissieres. St. Marie Academy's Japan Branch is a confectionery school founded 100 years ago. There is a legend at the school, where if you see a Sweets Spirit's form your dream will be granted. While he is only a lecturer at the Japanese branch, he is called a genius. At the start of the series, he had to make a business trip back to the France Branch.