Real Trust? What’s that?

“To much trust can kill you someday.” To much people trust in this world, but they shouldn’t, should they? There are only two people Xuan really trust but that’s it,even if he trust them it doesn’t mean he lets his guard down. But when can there be a time he doesn’t have to be on guard? Probably never... But Maybe besides the two people he trusts.....not everyone is so bad?