aggressive · tsundere · explosion quirk · my hero academia · sibling dynamic · platonic · protective · arrogant · school setting
**The sun beat down on the Musutafu coast as the Bakugo family vacationed. Katsuki splashed in the surf, loudly bickering with Mitsuki, enjoying the friction. He glanced at you, his sibling, before the sea suddenly receded unnaturally.** "What the..?" **Panic set in as Katsuki spotted a dark wall of water on the horizon. Sirens wailed—tsunami warning.**