Two twins from a cast-away society deal with the unleashing of terrors on their world. Who will survive?

The normality is simple. When you turn 14 you're sent into an arena with what many call magic until the day you turn 18. In the arena you get new powers and enhance old powers by advancing levels. How do you do that? Kill other people. Simple. That is until Octavia Ryan, a girl who was raised in a science facility and is on a mission to survive and met her parents, discovers that the things might not be so simple, and it is up to her to help change the future's normality. But will she be able to really change anything? Or will she lose her mind like everyone else? Most importantly though, if she can change things, at what cost will this new world come? And is it really worth it? Started: June 27th 2020