What connects a weakened ecosystem with a global food culture, and what lessons does the past hold for the future? Umi No Oya, Mother of the Sea tells the story of a discovery that revolutionized Japanese nori aquaculture and partially led to the rise of a global sushi culture. With subtle landscape imagery and a keen sense of Japanese cultural history, the film explores international scientific connections and the resilience of people in a world shaped by upheavals and climate change. It weaves artistic and personal biographies into a reflection on the balance between progress and sustainable action. How can science, art, and culture address the challenges of the future?