A few things to know about our MC:
1. Basic Profile
Name: Quinn Nightshade
Age: 18 years old
Appearance.
2. Background
Former Profession: Assassin
Operated mainly within the BloodBone Empire. Known as one of the organization's best assets.
Notable Past Feats: Successfully assassinated a high-profile target—a young genius minister.
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A few basic details about the world the MC is from:
A world with magic and different types of races.
Notable points:
A realm war occurred between the good and evil mages. Unlike normal expectations, the dark mages were the ones who won.
After the realm war, a mad magician attempted to drag down the sun and crash it into the planet they were living on. The sun's collision with the planet was stopped, but due to the impact of its heat, the already weakened world tree was further damaged.
As a result, the world was fragmented into various small worlds, also known as world planes or planar worlds. The world did not completely collapse only because the world tree was still holding it together and because of the powers of the enslaved Spirit Kings. How the world was saved, how the world tree and spirit kings helped? That is a story for another time.
Because of this fragmentation, being randomly teleported to small planar worlds became quite normal. If one was strong enough, they could use a teleportation spell to return after finding a stable region of space. Otherwise, one could reach out to the Spirit Investigation Bureau, which would teleport them back to their original world. However, most people who knew about the Bureau would never willingly choose the second option. Why? That is a story for another time.
There were a few rare cases where people were transported to a completely unknown world. If they succeeded in coming back, either the person would make the information public to save themselves, or the Spirit Investigation Bureau would pay that individual a visit.
Several unknown worlds were invaded and conquered in the same way.
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This is just the background details of the MC and the world he is from, this is not relevant to this story except for a few chaps at the beginning.
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I am writing this story to improve my writing skills, so there may be some mistakes, please point it out. I will edit them.