What is a proton cluster?

Protons of Shang Dynasty in the movie Song of the First Wind in Shen Feng. "Proton Group" comes from the movie "Shen Feng's First Song of the Wind", which became popular on the Internet because of the high proton value of each tribe. Ancient "proton" means: hostages, hostages sent to enemy countries or other countries in ancient times, mostly people of noble birth such as princes or princes.