More updates on Chi!:

Since Chi harmonizes the body with cosmic order, it would also extend into resisting biological diseases or infections that seek to disrupt the body’s flow. Any sort of corrupting or possessing a person’s body is useless. Because Chi requires confronting one’s inner self to awaken, it establishes a sort of “self-sovereignty.” This would make outside entities trying to possess, corrupt, or overwrite the will far less effective.

Past Nhazul displayed this to his friends (Zetabrand), in hopes they too can overcome these.