Thirteen-year-old mountain village girl Su Nian ventures to rescue the distressed boy Gu Chuan, and even gifts all of her school entrance tuition to him, causing herself to miss the opportunity to attend school. Ten years later, the successful Gu Chuan returns to his hometown with a keepsake to seek his benefactor, and stepsister Su Yurou seizes the chance to falsely claim the gratitude. Gu Chuan carefully investigates and uncovers the truth, helps Su Nian untie her emotional knot, supports her in picking up her dream of studying once more, and ultimately Su Nian walks out of the mountains, starting a brand-new life.