Charlotte was orphaned at a young age, she and her sister Harper were adopted by a nun named Sister Millie. Charlotte is the cunning, strategic half of the duo, known for her mischievous personality and love for plotting pranks. she serves as the brains of the Helper's strike squad, using her intelligence to outmaneuver foes and control battles with explosive doll summons. Her close bond with Harper enhances their combat synergy, making them a formidable pair.

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