Em is a manifestation of Experience and Intention that was born through the Knighthood Journey. The Journey consisted of training, learning, enlightenment and dedication driven by willpower toward achieving the goal. Goals are openly associated with conflicts.
Codes are principles that shape and guide a Knight through his Journey, often time they aid in the expansion and accumulation of Em. Also, in congregations of people the codes, if genuinely beloved in and adhered to, can aid to manifest power.
How can that be done mostly if Rank 1 or above was in the lead of it? Floating Feather Kight Squiers and they believe their headmaster allowed them to invoke the shield that protects them.
That also. alerted the old man and he rushed back to his school. He bent and checked the kid that was killed and what he saw threw him into a pit of rage. He dashed outside but met with a woman.
"Quench your rage, they have left!"