I won't give in to you, hero

Yuna, who was the hero's friend, companion and girlfriend, died alone, being wounded by the princess, whom they had saved. She returned to the past, determined not to let it happen again and not to meet the hero, since he had denied their relationship and started dating the princess. She is determined to do it but can she? (it have a spanish version in wattpad. User: @EVIAM08)