Shen Yuan, a pet shop worker, was so poor that he accidentally activated a worn-out red card and summoned the mysterious spiritual pet "Xiao Yan".
Black body with red stripes, cat ears and long tail - this red card spiritual pet, unique in the world, kicked him into the road of air armor competition.
From the bottom of the city to the top of the world, one person and one person can become the king by burning cards.
