She, living under someone else's roof in a wealthy family, suffers endless torment, and resolves to escape the suffocating environment, vanishing from everyone's view. He, always calm and restrained, originally maintained a detached distance, but once she leaves, his full-hearted care can no longer be hidden. Searching everywhere through hardships, his years of hidden forbearance love emerge to the surface. With worldly obstacles stacking up, he is unwilling to miss out again; when they reunite, he is determined to protect her safety for a lifetime.