The Life of A Forgotten Hero

I am like a shadow. I go unnoticed most of the time - but you know i'm always there , lurking around the corner. I was previously known as Andromeda Jackson and I wouldn't be surprised if you've never heard of me before - but I was the elder sister of Perseus Achilles Jackson, and daughter of Poseidon.

Was.

I'll skip all the unpleasantries and long stories for now, but I will tell you that that life is over. I am now known as Delta. Assassin of Chaos. You'd be lucky to never hear that name.
However, I am not only known as Delta.
I am the forgotten hero.

DISCLAIMER FOR THE WHOLE STORY- As much as i'd like to I do not own anything related to Percy Jackson except Delta and other OC's I might add further into the plot.