I Have Countless Small Worlds

After Zhao Qi traveled through time, he inexplicably became the Lord of the System and the Lord God of Reincarnation. Every day, I develop my own creative creative system and bind it to people in various small worlds. Moreover, the items in the system mall and mission rewards must be made by Zhao Qi himself. What? System, are you saying that the protagonist I selected has no weapons and is about to die? Wait a moment, I'll go get a fruit knife. The system can transform the fruit knife into a weapon and issue a random task to reward my protagonist. What? System, you said that my protagonist encountered difficulties when attacking the city? Wait a moment, I will go home from the fireworks shop right away. The system will transform the fireworks into intercity artillery shells and reward them to my protagonist, so that my protagonist will be invincible!