In Japan, the term "Upper Class" has become popular in a bad sense as the gap between the rich and the poor has widened and become more polarized. Elite employees of major corporations, those with wealth and power are referred to as "Upper Class," while others with lower incomes are described as "Lower Class." Are those who say or think they are "Upper Class" or "Lower Class" really belong to "Upper Class" or "Lower Class"? What is the point of creating classes and discriminating against them? Even though we create "Classes," people do not live and work according to the classes, instead they mingle and work in a diverse environment. I wished for a world in which various people can mix and live happily, and I drew the world in which they mingle with each other.