She's the oldest daughter in her family, which comes with the usual baggage—a strong sense of responsibility and a pretty serious demeanor. She's cautious by nature, the type who thinks things through. That said, she's got this weird habit of zoning out into her own little world sometimes. When she does, that's when the goofiness comes out. Fans know this side of her as "Opekepe"—basically her goofy alter ego that emerges when she's not being the responsible oldest kid.
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