Susumu Koyama was born in Kyoto in 1964. He opened Patissier es koyama in Sanda City, Hyogo Prefecture in 2003. He continues to develop a professional taste based on the idea of normal flavors with a sense of high quality. In recent years, he has attracted attention throughout the world in the field of chocolate. At the annual contest held by C.C.C., France’s most authoritative chocolate lovers group, he has won the top prize for eight consecutive years, since his first entry in 2011. He won the highest award for foreign chocolatiers in 2011, 2012, and 2014. In December 2013, he established Miraiseisakusho, a patisserie for children 12 years old or under, in the grounds of his establishment, as a way to raise expressive individuals of the future. He proactively holds lectures for educators and children from within and outside Hyogo Prefecture. In November 2017, he opened Yumesaki Annai Kaisha FANTASY DIRECTOR, a decoration cake shop at his establishment.