In the BNHA wikia it's mentioned that Nine betrayed Tomura. But I didnt realize any of this during the movie. Which was Nine's betrayal to Tomura Shigaraki?

Hunter x Hunter already has an idea which is very similar to Dragon Ball's ki, which is Nen. According to the Hunter x Hunter wikia, Nen in Hunter x Hunter means "Mind Force" and "allows a living being to use and manipulate their own life energy" Nen wikia, when Ki in Dragon Ball "is the life for...