character

Xin Ruyin proves technical knowledge can matter more than raw realm level

Xin Ruyin is memorable because formations are not treated as decorative circles behind a spell. They are engineering: routes, materials, timing, concealment and accumulated knowledge. Her value to Han Li comes from expertise he cannot replace by simply adding more spiritual power. That makes her archive important even if she has fewer spectacular battle images than a major combat character. Which formation scene or explanation best shows that specialists can reshape the choices available to stronger cultivators?