This is a long secret love that spans the entire youth, and it is also a heart-wrenching growth and transformation. He was once her shadow, guarding him silently for seven years, but she turned a blind eye. When he finally gave up and left, she suddenly woke up - the deep love she had thrown away had already been integrated into her bones and blood. When pride falls to pieces and when humility becomes a habit, can they find each other again in the broken past?