Lisa's perspective:
Mother and child become enemies when the mother is not ready to be a mother. Mom, how can you hide that you don't like Kevin and me?
Kevin's perspective:
Kevin thought Lisa was a saint and always wanted to shatter her perfect facade.
It was later discovered that the two sides of day and night had always existed in her, and Lisa's cold reason prevented them from going to destruction.
Purpose: Don't let the negative side ruin yourself