End of the world and hero's last words

So I have been struggling lately to figure out pieces of the puzzle that occur later down the road. Past Sierra and the current timeline- what happens? Who is still alive (if anyone) and what has happened to the world in that time and place? Well- some of those questions have answers and some of them are still hidden. 
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Time?:
The time takes place in the Shadow Age- this takes place after the actual "fall" or more commonly known as destruction of Nightfall. After the fall of Nightfall- the time is known better as AD- only this refers to "after darkness." So- to be exact! The timeline where these new events in question take place is in fact- 100AD. Do the math and that means 100 years after the events of Nightfall's falling this is where things take place.
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Place?:
After Nightfall falls where does that leave? Well- aside from other worlds tied into it like Purgatory, Labyrinth, and Void- a new world actually opens up. This world is referred to- Shiro- which reflects the Japanese word white. It is named this because it is the last refuge for any light left. This world was created by the remaining light left in all remaining worlds- coming together to form an Earth like world where the ways of old have once again come back into existence. That means castles, farming, and kings once again come into play.
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Character(s):
Peace Anari-
The last female of the pure Anari bloodline- Peace is a knight who also serves as ruler of a kingdom. Her district represents the Phoenix- the bird who dies in flames only to be born again in the ashes left behind. A girl who has the ability to look in the past- she has seen what had happened to the old world and her family and has since took it upon herself to stop the same events from occurring in her own. 
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Amity Anari-
Technically from a branch of the Anari family (aka the Cross family) Amity is actually a boy who grew up in the alley ways of Peace's kingdom. He was found by Peace who took him in due to them technically having the same blood and family name. Amity doesn't really get involved in guard duties or anything related to the kingdom. Instead he spends his time in the poorer districts and often just relaxes. Skills with a sword- however- he has high hopes to one day make it to knighthood simply so he can protect what he cares for most easier. 
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Last words
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The history of Jesse Anari has been the most difficult to construct. Being a character based off me I have been trying to keep certain events in my own life in his story. However, due to some things coming up- Jesse hasn't been able to be finished and has since been put on hold- however- I do know that he is present in the "fall" of Nightfall.