Protagonist: Lin Mo (a modern military researcher whose soul traveled to the Nanjing battlefield in 1937)
Goldfinger: A future military-reinforced laptop with an endangered battery (containing massive amounts of military, medical, and technology.
Su Wan: From a cold-faced military agent to a revolutionary with a bright heart.
Adjutant Wang (Wang Fu): A model of loyal military image, from protector to successor (Zhang Zizhong spirit).
Liu Tiejiang: The prototype of the "Great Country Craftsman", from a technical executor to an innovator and inheritor.