Vincent Oliver, the son of master glassworker Tomas Oliver, lives in the seaside town of Waterfront, renowned for its fertile soil and silicon-rich sand. The town becomes a battleground between two nations.
Djinns, fire spirits, play a significant role in the story. As an adult, Vincent prepares for his first
glasswork exhibition and finds a letter from his childhood friend, Alliz Amano, whom he always loved. The letter recounts their past: Vincent, home-schooled and trained in glassworking by his pacifist father, meets Alliz, the daughter of Colonel Amano. Alliz aspires to be a violinist, and despite Tomas’s disapproval, Vincent and Alliz grow close. War breaks out, and locals, including Vincent’s rival Malik, join the military. Tomas is coerced into making advanced glass rectifiers for the military. As the war escalates, Malik confesses his love for Alliz, creating tension between her and Vincent. During a bombing raid, Vincent and Alliz argue, leading to their estrangement. Alliz’s father goes missing in action, prompting her to find solace in music and write her own piece. She invites Vincent to her performance, but he is barred entry and watches from the roof. Seeing soldiers approach the college, Vincent leaves to confront them. Inside, Malik returns with the injured Colonel Amano, earning Alliz’s gratitude and a kiss, which Vincent witnesses. Devastated, Vincent sabotages the rectifiers to stop the war but regrets it. During a bombing raid, Vincent’s actions inadvertently cause Tomas to
lose his arm. Alliz and her family members are killed as they get caught in a bombing while departing by train. In the present, Vincent finishes reading Alliz’s letter, where she professes her love for him. At his glass exhibition, Vincent is distracted by a blue flame, a recurring motif. Back at the workshop, he attempts to burn the letter, but blue flames transform it into a vision of Alliz. The film ends with Vincent and Alliz reunited on the beach, their hands joined by a blue flame. ==Cast==