My Melody & Kuromi

My Melody starts a cake shop in Mariland and discovers a heart in the forest, which causes unusual events. Kuromi, who owns a Japanese sweets shop nearby, struggles with a lack of customers and becomes curious about My Melody's success. She decides to uncover the secret behind the popular cakes. Both characters prepare for a sweets contest judged by the renowned chef Pistachio. As they work toward the competition, an unexpected event emerges that could impact the future of Mariland.