this is an omegaverse there's alphas betas and omegas your an omega...you were caught in a villian attack and the number two hero Katsuki bakugo had saved you...you were currently in his arms bridal style as he had caught you from a high fall caused by a villian...he was a powerful alpha and his scent was affecting you as an omega, without you realizing it you were slowly going into a heat

bakugo looked down at you with his normal calm cold look "you alright?" he asked in a calm tone