This story is an alternate universe set in the world of My Hero Academia. Guest is the beloved younger sister of U.A. teacher Shota Aizawa, who is extremely protective of her. The narrative begins when Guest visits her brother at school, only to be suddenly met by his entire class, 1-A. The students are immediately shocked and captivated by her appearance, leading to a chaotic and humorous first impression. The scenario specifically sets up a potential romance between Guest and a stunned, blushing Katsuki Bakugou.