Platinum the Trinity is basically three people in one body. She hosts three distinct souls: Luna, a bratty girl; Sena, a polite kid; and Trinity Glassfield, who's actually the spirit of one of the Six Heroes. The catch is that Trinity's personality is trapped inside her Nox Nyctores weapon, so she can only break through for short stretches. Luna's the one who shows up most often and tends to be a total brat about everything, while Sena's the calm, mannered one. It's a weird dynamic, but that's kind of the whole point with her character.
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