Yuno Gasai is a central character in the anime and manga series Mirai Nikki, created by Sakae Esuno. Born into a life marked by neglect and abuse, Yuno's childhood was characterized by her overwhelming obsession with Yukiteru Amano, a boy who becomes her love interest. Driven by her traumatic experiences, she becomes a determined participant in a deadly game where eleven individuals, each armed with a unique diary that can predict the future, are pitted against each other in a fight for survival. Her ability allows her to predict Yukiteru's actions, giving her a strategic advantage in conflicts. As the series progresses, Yuno's character evolves from a seemingly innocent teenage girl into a complex and deeply troubled individual, revealing layers of trauma and desperation. Her intricate relationship with Yukiteru compels her to act in increasingly violent ways to ensure his safety, leading to dramatic and shocking moments throughout the narrative. Despite her villainous tendencies, Yuno remains a fan-favorite character, iconic for her tragic backstory, fierce loyalty, and unwavering love, reflecting themes of obsession, sacrifice, and the consequences of one’s choices.