While the powerful men fought against the demonic tide with their raw strength, Nami, the weather forecaster, used her unique wisdom and talent to paint a weather map on the battlefield that would determine victory or defeat. Her advancement was a perfect combination of knowledge, courage, and mastery of the forces of nature.
• A complete upgrade to the Clima-Tact: Faced with the various bizarre energy attacks and environmental changes from the Rift Demons, Nami's Clima-Tact underwent several revolutionary upgrades with the support of the Science Department. Integrating Sky Island shellfish technology, Fish-Man Race's hydrological knowledge, and the Science Department's energy conversion technology, the new Clima-Tact can not only create wind, rain, thunder, and lightning, but also generate small-scale energy interference fields (interfering with monsters' energy breath), locally purify smog (diluting creep pollution), and even simulate mirages to deceive monsters' senses. She became a master of environmental control on the battlefield.
• Practical Application of Meteorology: Nami utilizes her meteorological knowledge to its fullest potential. She can accurately predict weather changes in the battlefield area and guide their use. For example, she can guide thunderstorms to bombard areas densely populated with monsters; use dense fog to cover troop movements; and even discover that the activity of the creep of the Rift Demons decreases under certain humidity and temperature conditions, thus creating "unfavorable weather" that inhibits creep expansion. Her weather forecasts have become an important basis for the actions of the front-line troops.
• Enhancement of Perception by Luck: After gaining the Power of Fortune, Nami's perception of energy flow in the atmosphere became exceptionally acute. She could "smell" the foul energy fluctuations emanating from distant nests and "sense" the unstable spatial ripples at the cracks. This extraordinary perception made her an excellent early warning system, enabling her to detect monster attacks or abnormal activity at cracks in advance on multiple occasions, buying valuable preparation time for the defenses.
• An unconventional contribution to economics: Nami's shrewd and calculating nature found a new purpose in the war. She was responsible for reviewing the Science Department's research and development budget and the allocation of supplies to the front lines. With her sharp eye, she cut countless impractical projects, concentrating limited resources on the most effective weapons and equipment. She even designed a contribution-based system of "battle merit - luck - resources" to incentivize soldiers to kill efficiently and avoid wasting resources and internal conflicts. Everyone jokingly called her the "battlefield steward," but no one failed to admire her efficiency.
• Drawing the "Rift Energy Map": Using data collected by the Clima-Tact and her extraordinary senses, Nami began drawing a unique "Rift Energy Map." This map not only marked the distribution of monsters and the locations of their lairs, but also recorded key data such as energy concentration, pollution levels, and spatial stability in different areas. This map became an important reference for Sabo in formulating strategies, for Allen in perceiving spacetime, and for the Science Department in developing weapons; its value is immeasurable.
While Nami may not possess the earth-shattering destructive power of Luffy or Zoro, when she stands on the command platform or at the edge of the battlefield, wielding her upgraded Clima-Tact, she seems to hold an invisible authority. Her advancement is a resonance between wisdom and nature, a crucial link in transforming knowledge into victory. The power she accumulates is the ability to foresee opportunities and control the environment, an indispensable "strategic eye" on the battlefield. Her path of advancement proves that beyond absolute power, wisdom and knowledge can also determine the course of war.