Start with the Weird Card Maker

Tang Yan, a deliveryman, accidentally traveled through a strange card world. As the son of an A-level card maker, he failed to make cards all the time. After awakening the Red Crane System, he increased his true energy against the sky, successfully created Suka, and broke the desperate situation of dropping out of school. However, weird things kept happening one after another. What conspiracy was hidden behind this? This book reveals it for you.