Sina UC is a new generation of open network instant communication and entertainment software that integrates the functions of traditional instant messaging software and incorporates P2P concepts. It combines colorful and illustrative scene-based chat modes, video calls, resumable file transfers, multi-user chat worlds, group message broadcasting, online gaming, and classmate directories (groups) into an organic whole. This creates a complete online instant communication and entertainment platform to meet the needs of daily work and life, offering users a brand-new experience of talking, watching, and playing all at once. For more details, visit www.ut-ut2.org.cn.