Delivery Man :Re

What is Cryst? What is Delivery Man? How is that relate to young and naive young man Edward? What would happen to his life? Is he young master? Cultivator story? Not at all, little bit of that and martial arts. and more toward apocalypse. There is system? Why bother System. Puih! Everything is system, boring! Cultivator fighting heaven? Not bowing (Respecting) heaven but only parents? I call that BS, since they didn't visit their parents often. This is story about a young man in ordinary family, fighting his fear and becoming better.