Despite her beautiful appearance, she is notably ruthless. When Sean is forced to endure a beating from Joseph Kwon's butlers, he coldly remarks that it’s not as bad as Sister Rachel's beatings, suggesting that her own methods are even harsher. She shows a strong disregard for human life, having repeatedly attempted to kill Hyeonho's mother—the woman Sean sees as a maternal figure—whenever the chance arises. Yet she isn't entirely devoid of emotion. Her obsession with retrieving Sean borders on irrational, leading her to defy the director's orders not to harm Hyeonho's mother. This act, driven more by jealousy than strategy, reveals a possessive and emotionally volatile side beneath her otherwise composed exterior.
She frequently shows signs of obsession toward Sean and often takes on a crazed expression in battle. At times, when her madness surfaces, her eyes turn red, further revealing her instability.
(Source: Dead Mansion Wiki)
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