Of the six Shadow Siblings, Sorrise is potentially the happiest one of them all for the sheer fact that she can almost always be seen smiling away like she has no cares in the world. Despite this equine's smiling face, she isn't always so happy, but makes it a point to make others feel better and at ease if she can. Having survived the incidents that killed her other siblings, Sorrise eventually came under the care of her primary Guard, the Thunder Guard Yuhi, who took very good care of her and allowed her to borrow some of his power to avoid the need to search for a vessel. In exchange, she's served as the Guard's hunter of sorts, taking out his worst enemies with her powerful kicks and, when necessary, using a bow to great effect. She's also found him suitable vessels to possess, though she takes care not to be seen. Despite all the horrific things she's witnessed as a result, she still smiles. One might be led to believe it's a smile of insanity, though, if they know anything about the Thunder Guard's corrupt years...
Sorrise used to live her life as a simple housemaid. She adored caring for the children she would come across, hoping to make the future a bit better by instilling positive mottos and morals into the little malleable creatures. She's a very easily-pleased lady as a result, though she doesn't like people that don't show proper respect to others at all.