Leen

Leen (リーン, Rīn) is a centuries-old fairy (around 612 years old at debut) from In Another World with My Smartphone. Despite her extreme age, she has the appearance of a young girl with silver/white twin-tails, golden eyes, and a petite build, which is typical for fairies who stay youthful lifelong—though she appears even younger than most of her kind, something she dislikes.

She serves as a powerful court magician (originally for the Kingdom of Mismede) with affinities for multiple magic types, including her unique null magic "Program" that lets her animate and control things like her companion, the animated teddy bear Paula.

Leen is knowledgeable, curious (especially about magic and new discoveries), often mischievous or teasing, and becomes one of the protagonist Touya Mochizuki's wives after joining his group to learn more from his abilities. She later becomes associated with the Dukedom of Brunhild.