Not only are the characters in The Romance of the Three Kingdoms fictional and sensational and not to be taken seriously, but even Kuan Kung's most famous exploit of passing the five guardhouses and killing the six guards is without supporting evidence.
三國演義不僅人物有虛構，情節也是加油添醋，做不得準，連關公最著名的過五關、斬六將，都屬「查無實據」。