Yuno Gasai is the central female character in Future Diary, the anime adaptation that aired in 2011 of Sakae Esuno's manga Mirai Nikki. Her devotion to Yukiteru Amano, which veers into stalking and violence, made her the defining example of the yandere archetype in modern anime fandom. Clips of her distinctive laugh circulated widely in anime compilations, reaction videos and short-form edits, where it became shorthand for obsessive affection. It remains popular because it instantly communicates a specific character type without needing any explanation.