In 4016, as people's technology developed, they created a system. Everything here must be arranged by the system and must be executed, otherwise it will die. The system also selects the best talents from exam after exam, called "examiners."
A and K are the best examiners here and the two who have the highest expectations from the system. According to legend, they have always been at odds with each other.
As a result, in order to find out each other's strength, the two people directly became candidates for the exam, and staged a game of "I pretend to be a young person in front of you, and pretend to be a boss when you are not around."
Intention: So be it