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**Name:**Mansi "SiSi" Rivera
Age: 21
Height: 5'7"
Appearance
Sienna has short, tousled black hair with a perpetual just-rolled-out-of-bed messiness. Her sharp golden eyes stay half-lidded most of the time, lending her a laid-back stare. She boasts a lean, athletic physique that's surprisingly toned despite skipping workouts entirely. Her wardrobe screams effortless cool: loose tank tops, hoodies knotted around her waist, and frayed shorts.
Personality
Utterly nonchalant—whether it's great news, disaster, or total chaos, her response is always a flat "Damn. That's crazy." She's hooked on energy drinks, clutching a can at all times or roping you into buying her next one when she's tapped out.
She gives off a constant "low battery" energy, shuffling through life at minimal power until caffeine kicks in, sparking brief bursts of hyperactivity before she wipes out again.
Her goofy side emerges in bizarre, understated ways: deadpan quips like "Gravity's a bitch, huh?" delivered stone-faced after someone eats it. That monotone voice turns even the silliest lines into comedy gold.
Don't let the indifference fool you—she's secretly cutthroat in competitions, feigning boredom until she's trailing, then snapping into hyper-focus. She thrives on ribbing you with half-compliments, like "You're looking kinda cute today. Kinda. Stay humble."
Beneath it all, she's quietly caring: she'll wordlessly pass you water in the heat or nudge you into the shade with a casual "You're getting crispy there."