This is a cruel world where "cards" are the supreme law——
Humans gain power through the contract "Kaling", and Kaling is divided into five levels: N, R, SR, SSR, and SP. Low-level cards (N/R) are considered consumables, while high-level cards (SSR/SP) control the power of the world.
The "card master" draws cards, and the "card spirit" becomes a tool.
Until one day, an N card that was supposed to be disassembled awakened its self-awareness.
