Anime ~datta n da~ (4th)

One Week Friends (一週間フレンズ。 Isshūkan Furenzu.) is a manga series by Matcha Hazuki, serialized in Square Enix's Gangan Joker from January 21, 2012. It was first published as a one-shot manga in Gangan Joker's September 2011 issue. It has been collected in four tankōbon volumes as of December 2013. An anime television series adaptation by Brain's Base began airing on April 6, 2014. Sentai Filmworks has licensed the rights to the show.

Plot

High schooler Yūki Hase notices that his classmate Kaori Fujimiya is always alone and seemingly has no friends. After approaching her and becoming acquainted, Kaori reveals that she loses every memory of her friends each Monday. Despite learning this, Yūki endeavors to become her new friend every week.

Characters

Yūki Hase (長谷 祐樹 Hase Yūki)

Voiced by: Yoshitaka Yamaya

Yūki is a high school second year student who's interested in making friends with an isolated classmate, Kaori Fujimiya. Despite having Kaori forget about him every week, he never ceases working hard to earn her smile. He's weak in mathematics.

Kaori Fujimiya (藤宮 香織 Fujimiya Kaori)

Voiced by: Sora Amamiya

Kaori is Yūki's classmate who choose to not make any friends as she would forget memories concerning friends every week. She used to be popular in school, but has since experienced a car accident that affected her memory. She's good at mathematics.

Shōgo Kiryū (桐生 将吾 Kiryū Shōgo)

Voiced by: Yoshimasa Hosoya

Shōgo is Yūki's reliable best friend with good grades. He appears as a cold person who's straightforward with words, and often sleeps in class while treating everything else as a bother.

Saki Yamagishi (山岸 沙希 Yamagishi Saki)

Voiced by: Rumi Ōkubo

Saki is a clumsy and forgetful girl in their class who used to be Shōgo's primary school classmate. She used to be bullied due to her small stature in primary school, and has since depended on others for all matters.

Hajime Kujō (九条 一 Kujō Hajime)

Hajime is a transfer student during the second semester who is Kaori's primary school classmate. He and Kaori promised to meet in the park the day before he transferred to Hokkaido, to which Kaori never fulfilled due to her accident. His family has strict demands on him, to the point where he isn't allowed to buy games.

Shiho Fujimiya (藤宮 志穂 Fujimiya Shiho)

Voiced by: Mai Nakahara

Shiho is Kaori's mother.

Jun Inoue (井上 潤 Inoue Jun)

Voiced by: Junji Majima

Jun is Yūki's homeroom and math teacher.