Taking "two-way redemption" and "mutual growth" as the main lines. On the surface, it is a classic collision between a cold genius academic master and a tough and healing girl. On the inside, it is the mutual warmth and illumination of two lonely souls. The female protagonist is not a traditional "silly sweet", and the male protagonist is not a thin "iceberg". Their relationship progresses step by step while overcoming external resistance and inner obstacles, and eventually becomes an irreplaceable "just right" in each other's lives.