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. I am developing my own creative system every day and binding it to people in various small worlds. Moreover, the items in the system mall and mission rewards must be made by Zhao Qi personally. What? System, you said 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 for a while, 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! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.