This is the collision between the "wolf nature of sales" and the "rules of the system". Sales is the knife that breaks the ice, and the system is the bowl that holds water - the knife can cut through walls to draw springs, and the bowl can moisturize a place.
The male protagonist grew up from a beer salesman full of wolf nature to a business elite within the system. He broke into the "system" with his "wolf nature" and became a strong person, completing the rite of passage from "self-interest" to "altruism".
