Ms. L is the vengeful spirit turned entity of Lucy. She was once a hero with her older sister Maria, but after an argument that caused Maria and Lucy to not like each other, Maria and Lucy worked together once to beat Bowsette, but when Maria cut the bridge, Lucy fell into the lava to her death. Heartbroken, Maria would live with what she did for a while, before meeting Lucy again, now as an evil vengeful spirit. After she killed Maria in the same way she died, she is going after her friends.