The essence of the world: Under the modern city (with the fictional "Cangnan City" as the core), there is a "qi network" spread from ancient times. Qi energy originates from the city's "popularity" (crowd activity, emotional aggregation) and "territory veins" (topography, building layout). The two blend to form "pulse energy" that can be absorbed and used.
Qi Vein Rules: Most Qi Vein nodes are hidden under urban landmark buildings (old churches, century-old parks, subway hubs) or special places (abandoned factories, old alleys). Node activity fluctuates with the development of the city - nodes in prosperous areas are strong, nodes in decaying areas are weak, and even "pulse turbidity" (Qi vein pollution, breeding low-level "turbid spirits") may occur.
Strength level: From low to high, it is divided into seven levels: touching the meridians, opening the meridians, condensing the meridians, shaping the meridians, suppressing the meridians, controlling the meridians, and transforming the meridians. Each level is divided into three stages: initial, middle and high.
Touching the Pulse: Being able to sense the pulse qi, initially absorb it, and have a slightly higher physical fitness than ordinary people (such as running faster and being slightly stronger).
Tongmai: Can guide pulse energy to flow throughout the body, and can use simple "pulse techniques" (such as condensing pulse energy to strengthen fists, short-distance vertical jumps).
Pulse Condensation: The pulse energy is condensed into a "pulse core" in the body, which greatly improves the strength and can be separated from the energy node activities for a short period of time (leaving the node area, the consumption of pulse energy will be accelerated).
