Miina/Tropes

A-G

 * Action Girl: Or more precisely, Action Little Girl.
 * Badass Adorable: Oh look at that cute little girl Isn't she lovely? Unless you hurt her brothers, she'll probably beat the crap out of you...
 * Berserk Button: Don't hurt her big brothers. Just. Don't. Hurt. Them. Or she might kill you with her BFS.
 * Beware The Nice Ones: Mii is really a good kid. Only, she won't forgive anyone who hurt both of her brothers, I mean No. ONE!
 * BFS
 * Cheerful Child
 * Curb-Stomp Battle: How Zalix got defeated by her when he beats both Tsuruya and Kanda.
 * Cute Bruiser
 * Cute Little Fang
 * Dumb Muscle: Justified. She has huge strength, only, she's still a kid.
 * Genki Girl

H-P

 * Has Two Daddies: Actually... It's Two Brothers, but it still fits.
 * Innocent Blue Eyes
 * Kid Hero
 * Let's Get Dangerous: Oh look at that There's no way this cute little girl can be-wait, OMFG! She's got a huge SWORD!!!
 * Overnight Age-Up: Kinda Inverted. Her "regressed" form took that of a little child, but she can transform into the beautiful Queen Martel.

Q-V

 * Rapunzel Hair: As Martel, her hair grows until her waist.
 * Third-Person Person: She calls herself Mii.
 * Token Mini-Moe: Out of the Revenant Sword group