Jung Han-su! Because of his name, he falls under unfavorable circumstances. His motto is 'Every day, be well.' But a band of people challenge him. They are: Baek Sung-gi who overwhelms all of the students, Han Min-ju who surpasses the male sex in every aspect, and the teacher in charge, Go Min-sik who is simple and ignorant. Just as his thought, can he overcome this difficult situation and live a harmonious life?