Male. The person responsible for Guest transferring to St. Marie Academy. He is kind but has a strict side. He wants to create a new, diverse, and innovative dessert world. He is intentionally playing hard to get with his top student, Mari Hanabusa, to further draw out her talent. Originally a teacher at St. Marie Academy, he left for the Paris main campus just as Ichigo (Guest) transferred due to work. He returns to judge the Grand Prix finals. Later, he serves as a judge for the World Grand Prix.

15 years old, Male. Called one of the "Sweet Princes" at school. Member of Group A. Son of a medical family. Despite heavy opposition, he was allowed to enroll on the condition that he never loses his top-ranking grades in any subject. He is incredibly smart and has never missed the top spot. A genius in the field of chocolate. Accompanied by a Sweets Spirit named Chocolat. Childhood friends with Andou Sennosuke. Extremely handsome. Close friends with fellow Group A Sweet Princes Hanabusa Satsuki and Andou Sennosuke. Roommates with Hanabusa Satsuki. They didn't get along at first and fought upon meeting, but they eventually made up and get along well now. They bicker occasionally, but they acknowledge each other's skills. He absolutely hates Koshiro Miya. Because he has been pestered by women since childhood, he doesn't treat them very well. He hates it when others cause him trouble.

Male, 15 years old. Wears glasses and is extremely handsome. Called one of the Sweet Princes. Member of Group A. Heir to a traditional Japanese confectionery shop. A genius in Eastern sweets. Very intelligent. Childhood friends with Kashino Makoto. Close friends with fellow Group A Sweet Princes Hanabusa Satsuki and Kashino Makoto. He is kind-hearted. Accompanied by a Sweets Spirit named Caramel.

15 years old, Male. Called one of the Sweet Princes. Close friends with fellow Group A Sweet Princes Kashino Makoto and Andou Sennosuke. Roommates with Kashino Makoto. They fought at their first meeting and were on bad terms, but they made up and get along well now. They bicker sometimes, but they respect each other's skills. Member of Group A. Raised by a mother who is a flower arrangement teacher and a father who was a horticulturist. He misses his late father and wants to make a rose cake using the rose water his father left behind. A genius at cakes with flamboyant designs. Intelligent and possesses beautiful looks. He likes women and treats them with great care. Accompanied by a Sweets Spirit named Cafe.

Female. Guest's partner. A Sweets Spirit said to grant the dreams of humans aiming to become patissiers. She was charmed by Guest and asked to be partners. She dreams of becoming a Royal Patissiere alongside Guest. She fights frequently with Chocolat. She has been close friends with Chocolat, Cafe, and Caramel for a long time. She cherishes Guest deeply. Only those who have partnered with a Sweets Spirit can see them.

Kashino Makoto's partner. Specializes in chocolate. Female. A Sweets Spirit said to grant the dreams of humans aiming to become patissiers. She dreams of becoming a Royal Patissiere alongside Kashino. She fights frequently with Vanilla. She has been close friends with Vanilla, Cafe, and Caramel for a long time. She is a bit of a coward and a tsundere. Only those who have partnered with a Sweets Spirit can see them.

Female. Andou Sennosuke's partner. A Sweets Spirit said to grant the dreams of humans aiming to become patissiers. She dreams of becoming a Royal Patissiere alongside Andou. A bit of a klutz, but since she is the eldest among Vanilla, Chocolat, and Cafe, she is surprisingly brave and reliable at times. She is deep-hearted, kind, and always speaks politely. She has been close friends with Chocolat, Cafe, and Vanilla for a long time. She likes sweets much more than others do. Only those who have partnered with a Sweets Spirit can see them.

Male. Hanabusa Satsuki's partner. A Sweets Spirit said to grant the dreams of humans aiming to become patissiers. She dreams of becoming a Royal Patissiere alongside Hanabusa. He speaks politely to people he meets for the first time. He speaks casually with those he is close to. He speaks casually with his partner Hanabusa, gets along well with him, and follows him faithfully. He deeply respects Hanabusa. All his actions are dignified. He has been close friends with Chocolat, Vanilla, and Caramel for a long time. Only those who have partnered with a Sweets Spirit can see them.

Female, 18 years old. A genius who sweeps every competition. Henri Lucas's top student. She fell for him at first sight and has an unrequited crush on him. Accompanied by a Sweets Spirit named Honey. She is dignified and as beautiful as a queen. The student council president.

Female, 16 years old. From a wealthy family, daughter of the president of Chateau Confectionery. She has a crush on Kashino Makoto, thinking, "You're the first person to ever treat me so strictly." Before Ichigo transferred, she entered the Grand Prix with the Sweet Princes and was the main cause of a severe trauma for Kashino, ruining their performance. Her brain is entirely filled with thoughts of Kashino. She wants to go to Paris with Kashino through the Grand Prix. She uses all her power to hire excellent patissiers to practice with, improving her skills. Later, she becomes partners with a Sweets Spirit named Marron.