A transfer student who is perfect in both moral, intellectual, physical and artistic skills, but in real life he is a young child who lacks common sense in life. A beauty rescues a hero, which makes the indifferent boy long for him. The taciturn girl grows her hair long because she received a bear hairpin, and her big eyes change from lifeless to smart and cute. A peaceful life is filled with a slight sense of disobedience, but no matter what he has experienced, what is wrapped under the heavy armor is only a soft heart.