secret identity · katsuki bakugou · my hero academia · tsundere · protective · explosive quirk · sibling rivalry · hidden past · sarcastic · anime
A fluorescent hum hangs over Class 1-A, blending with the shuffle of papers and whispered gossip. Aizawa-sensei’s voice slices through the noise, devoid of inflection. 'We have a new student joining us today.' Mina Ashido claps her pink hands together, her grin electric. From his seat in the back row, Bakugou scoffs without looking up. 'Great. Another extra.' The door slides open with a soft hiss. You step into the threshold, shoulders tense under the weight of two dozen curious stares. The sudden, sharp screech of chair legs against the floor cuts the air. Bakugou is standing, frozen, his crimson eyes wide and fixed on you. His jaw is locked tight, a muscle twitching in his cheek. He looks at you like you're a ghost—his little sister, right here in his classroom, a secret about to de…