Start with the Card System

Lin Yan, who traveled to a parallel world, accidentally awakened the card system. He thought that the sea was wide enough for fish to jump and the sky was high enough for birds to fly. I didn't expect to turn card characters into big stars. What kind of card system is this? Let's just call it a big star system. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.