How everything started

Erica jeager surprisingly more calm than her brother always smile but when you get on her bad side you are dead.
She always looks way different than her brother Infact you may they are fraternal twins.
She is calm and collected like her father, a great medic, aloving sister and friend.
What will happen when things turn for the worst and the world turns back on her by taking the thing she loved best?????.
Will she join the survey crops with her brother and help humanity and possibly find love.....