In the summer of her freshman year of high school, the young man's passionate love found a home, and the young girl had one more worry hidden in her heart. Careful testing, two-way love. He was a ray of light that appeared in her life. He was the person she would never meet again in her life. He confirmed his love but left to realize his dream. Seven years of youth, 365 handwritten letters in one year. When we saw each other again, he attracted the attention of thousands of people. She passed through the world, and thousands of words converged into one sentence: "Long time no see..."
Concept: two-way secret love, two-way redemption, reunion after breaking the mirror