Qiao Xu from an ordinary family dated rich Xu Si'an for three years. After graduation, Xu's mother's obstruction and Shen Zhiwei's plots caused her father’s fatal failed surgery. Devastated, she left silently with her dog.Four years of depression followed. To her surprise, Xu Si'an became her boss and assigned her as his personal secretary. Cold in public, he pressed her privately about her sudden departure. Though he said he wanted revenge, he always protected her in distress. Misunderstandings faded, healing her lonely heart. After the truth surfaced, he fiercely defended her against his family to brighten her future life.