One Week Friends is a 2014 romantic comedy Japanese anime series based on the manga series written by Matcha Hazuki and serialized in Square Enix's Gangan Joker magazine. One day, high school sophomore Yuki Hase happens to notice that his classmate, Kaori Fujimiya always seems to spend much of her time all by herself. Mustering up his courage, Yuki approaches Kaori and attempts to befriend her which she reluctantly allows. However, after the pair share many meaningful and fun conversations, Kaori denies her friendship with Yuki, stating that she loses the memories of any friends she makes each week. Despite this, the story follows Yuki and his determination to become Kaori's friend over and over again as the weeks go by.