My Cards Can Be Fused Limitlessly

This is a world of card warriors. Collect materials, strengthen your cards, find the secret blueprints, and fuse cards to form new ones! Zhou Nan spent 69 days completing the hidden achievement in order to change his occupation to the Black Card Emperor. The Black Card Emperor is the only hidden occupation. He doesn’t need the secret blueprint to fuse the cards, and can fuse limitlessly! As such… All sorts of strange cards emerged!