From the incompatible "prick head" and "discipline committee member" on the vocational high school campus, they intersected due to an unexpected mutual aid. They experienced the ignorance of adolescence, the reality test after graduation, the hardships of starting a business together, and the sweetness and bitterness of emotional running-in. Finally, they entered into marriage hand in hand, welcomed the arrival of new life together, and completed the transformation from teenagers to parents.