Mukki dreams of seeing a rainbow, but living in darkness makes it impossible. With Lallo's help, Mukki learns to feel the colors with his heart. From warm red to mysterious violet, each color brings joy!But when Lallo disappears during a storm, Mukki notices his friend is missing and starts looking for him, hoping to bring back the light.Come along with Mukki and Lallo on their colorful journey to find friendship and light!