Ruler of the Shetou house Song and the most powerful necrocarnate in the system. The Song family have a long history of willingly passing on their souls to their children to watch over them even in death, sparking the strangest case of of a necrocarnum use. Despite the massive (and rightfully earned) stigma of necrocarnates, its hard to accuse Song Yi of being evil given all of her souls were given to her willingly. This includes what they refer to as their family's "guardian spirit", a dragon's soul. Because of the sheer concentration of benevolent necrocarnum power within her, she has an abnormal lifespan for a human. No one knows when age will take its toll on her, but her father lived to be over four hundred and despite looking 20 she's currently 136 years old.

Within Shetou the drow tend to just ignore it, though Alnae has a well known distaste for her existence regardless of the unique circumstances. Unlike most military leaders, Song Yi is known for personally partaking in almost every fight her troops are engaged in. All military leaders know who she is ever since she cut through a capital ship's hull with her necrocarnum sword. She's considered a strategical "abnormality" among military commanders.