Serena Luna is a wolf shape-shifter. She was a mysterious eighth member of the deadly sins. When the sins were framed for the murder of the Grand Master she disappeared into the mist. Ten years later she walks into a tavern called the Boar hat. She instantly recognizes captain Meliodas. when he sees her wolf ears and tail he realizes that it's her. He introduces her to Elizabeth and hawk. They head out find the rest of the sins. Including Serena's long time crush who gave her the nickname Wolfie. His name is Ban, the fox sin of greed.
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