Copywriting: It was originally two parallel lines that could never intersect. However, Lu Shijie and Huangfu Jing met in Yangzhou City and became enemies. Lu Shijie thought that the next step was to wipe Huangfu Jing clean, or cut it into sections. But in Huangfu Jing's view, it was just an inconspicuous intersection. A small boat without a big ship had no choice but to run aground.
However, Lu Shijie did not expect that Huangfu Jing also miscalculated, because no one expected that God would actually set a twin thread for them to be tied together and entangled!