The Story About Adam And Eve
God is omniscient and everything is in His knowledge. Quran tells us that Iblees himself became arrogant – there was no other prior shaitan needed.
You’re assuming that evil only comes from shaitan – that’s not the case. The knowledge of good and evil as well as free will has been inherently given to all humans and jinns. Please refer to the following discussion to get a basic premise of religion: Discussion 1623