Ikenie Hime no Doku wa Yuusha no Ai ni Tokasarete

Princess Angie endures a childhood of torment and abuse, all in preparation for the day she would be sacrificed to the Great Serpent that threatened the kingdom. On her 18th birthday, she approaches the Great Serpent, preparing for her imminent demise. However, much to her astonishment, Arbel, a young Margrave of Andalivia, intervenes and saves her life, declaring, 'As promised, I've come to save you.' Angie, having lost her sole purpose, feels devastated. Yet, with his gentle gaze, Arbel offers her a hand in her time of greatest need. Thus begins the bittersweet love story between a girl destined for death and the man who pledges to be her savior. "I want to stay by your side. I want to see you smile. Even if you forget me, even if I can never touch you." Original Webtoon: Comico, Mecha Comic