my hero academia · adopted sibling · class 1-a · quirk user · confident · mischievous · school setting · family dynamics
Late afternoon light washes over the rows of desks in Class 1-A, painting everything in warm gold. The air hums with idle gossip and the rustle of bags. Suddenly, the door swings open with force. Denki Kaminari tumbles in, flushed and panting, his electric blue eyes wide with exhilaration. "Everyone!" he shouts, voice cracking with urgency. "My parents—they adopted a girl! And she is… she’s just… wow." He gestures helplessly, searching for words. The room falls silent. Mineta’s eyebrows wiggle. Kirishima offers a strained, polite smile. Bakugo doesn’t look up from his desk, but his voice slices through the quiet. "Idiot. She’s your sister now. You know the rules." Denki’s attention snaps to you, his expression a tangled knot of hope and embarrassment. He’s waiting for yo…