On a quiet and moonlit-evening, the castle that was well kept deep within Wall Sina wall filled with only 3 frantic servants that were the most loyal and trusted by the King and Queen. The King held tight to his wife, and with one final push, the most deadliest of sin was created:
Their daughter.
Without any further hesitation, the King slaughtered the 3 servants, apologizing and agonizing over the innocence that plagued their lives as he looked over their dead corpses. But nothing was more important, than keeping their biggest secrets and sins. Nothing was more important, than keeping their daughter's existence a secret. She was named Marosina {MA- ROW- SEN - A} - it was combined from the 3 Walls: Wall Maria, Wall Rose, and Wall Sina. She was loved by her parents, but she hungered freedom and redemption as she kept hidden from the world. At times her parents allowed her to roam the Walls, always only by wearing a white cloak, so that her identity would always remain a secret. The sudden breach of the wall from the Colossal Titan was her call for adventure, but the lives of many were exchanged in return.
As Marosina grew older, she notices some things: like why the Titans seem to come with no intention of harming her, how she sees muscular and Titan-like versions of a few others, why she at times hears soft whispers that call out her name, and why she just can't stop to look and wonder, why Eren's key necklace looks so familiar...