RAIN is a real-time animation technology for infinite video streaming, capable of delivering high quality and low-latency animations on consumer-grade devices. It efficiently calculates frame labeling with different noise levels and extended intervals while denoising more frame labels than traditional streaming methods. This allows for generating video frames at a higher speed and shorter latency while maintaining stream coherence. RAIN introduces only a small number of additional 1D attention blocks, which keeps the system's burden light. This technology is expected to combine with computer graphics (CG) in fields such as game rendering, live streaming, and virtual reality, utilizing AI's generative capabilities to render countless new scenes and objects, providing a more interactive participation experience.