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Characters / One Week Friends

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The character sheet for One Week Friends. Help will be much appreciated.

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     Main Characters  

Yūki Hase
Voiced by: Yoshitaka Yamaya

The protagonist of the series, Yūki is a second year high school student who develops an interest in Kaori Fujimiya, his classmate who keeps herself isolated from the others. He later learns that she loses all memories of her friends each week, including him. Despite this, Yūki still wants to become her new friend every week.

  • Book Dumb: Very bad at mathematics.
  • Butt-Monkey: He is probably the closest thing this series has to one.
  • Adorkable: He has his moments.
  • Cannot Spit It Out: Subverted by the end of the manga. He almost did it, but then cue Interrupted Declaration of Love.
  • Catch Phrase: "Please be friends with me."
  • Crazy Jealous Guy
  • The Determinator:
    • He will never stop trying to ask Kaori to be his friend again and again... unless he starts to think that she's interested in other boys besides him. Which is quite often.
    • It's because he's this that he became best friends with Shōgo, who was the typical Lone Wolf at the start of middle school and refused to be friendly with anyone. Hase actually took this attitude as a challenge and wanted Shōgo to acknowledge him as someone at his level. His plan of action? Interact with Shōgo everyday in class and after school, no matter how annoyed he gets.
  • Nice Guy
  • Not So Different: With Hajime.
  • What the Hell, Hero?: He does this quite a few times, which can also count as Nice Job Breaking It, Hero!.

Kaori Fujimiya
Voiced by: Sora Amamiya

Heroine of the series, Kaori is Yūki's classmate who keeps losing her memory of her friends each Monday. As a result, she tries to isolate herself from other people.

Shōgo Kiryū
Voiced by: Yoshimasa Hosoya

Yuuki's best friend. He appears to be a cold person and treats everything else as a bother, but he is always very reliable.

Saki Yamagishi
Voiced by: Rumi Ookubo

One of Hase's classmates. Saki is a clumsy and forgetful girl who used to be Shōgo's primary school classmate.

Hajime Kujō
Voiced by: Shintaro Asanuma

A transfer student. He was Kaori's primary school classmate, but he treats her poorly when they're reunited. Once he learns about her amnesia, he starts to hang around with the group.


     Supporting Character  

Shiho Fujimiya
Voiced by: Mai Nakahara

Kaori's mother.

Jun Inoue

Voiced by: Junji Majima
Hase's homeroom teacher.
  • Adults Are Useless: Subverted, as he understands Kaori's situation and gives her a rooftop key.

Maiko Serizawa

Voiced by: Asuka Kakumoto
One of Saki's friends, who often spoils her.

Ai Nishimura

Voiced by: Rui Tanabe
One of Saki's friends, who is a good coordinator.

Mitsuru Kujō
Hajime's older brother. His appearance indirectly causes the conclusion of the story.
  • The Ditz: He doesn't even seem to mind that his parents disowned him due to him being a slacker.
  • Gone Horribly Wrong: It's revealed that in the past, Kaori indeed went to the park to see Kujō, but she overheard him suggesting making fun of her and letting Kujō play a hero role so she would remember him after Kujō moved away. While Kujō refused to do it, Kaori had already run off. She then ran into some of her other friends who were bad mouthing her. Long story short, his joking for Kujō's sake unknowingly caused a chain of events for Kaori.
  • Last Episode, New Character: He appears near the end of volume 6.


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