Isshuukan Friends.
One Week Friends
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Isshuukan Friends.

Alternative Titles

Japanese: 一週間フレンズ。
English: One Week Friends
More titles


Type: Manga
Volumes: 7
Chapters: 41
Status: Finished
Published: Aug 22, 2011 to Jan 22, 2015
Genres: Comedy Comedy, Slice of Life Slice of Life
Theme: School School
Demographic: Shounen Shounen
Serialization: Gangan Joker
Authors: Hazuki, Matcha (Story & Art)


Score: 7.511 (scored by 71077,107 users)
1 indicates a weighted score.
Ranked: #28882
2 based on the top manga page. Please note that 'R18+' titles are excluded.
Popularity: #936
Members: 19,226
Favorites: 306

Available At


Ranked #2888Popularity #936Members 19,226
Add to My List
Volumes: /7
Chapters: /41
Available on Manga Store
One Week Friends
Volume 1


Kaori Fujimiya is always alone because all of her happy memories, including time spent with her friends, disappear every Monday. Deciding that he wants to be friends with her anyway, Yuuki Hase tries to get close to Kaori each week, wishing that she would one day call him "a friend."


Isshuukan Friends. was published in English as One Week Friends by Yen Press from December 19, 2017 to June 18, 2019. It has been licensed in Spanish by both Panini Manga México and Ivrea Spain.

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Inoue, Jun
Nishimura, Ai
Kujou, Mother


Apr 3, 2015
Preliminary (26/41 eps)
Yay, my first review ^.^

This manga honestly took me by surprise. I'm not normally a fan of manga or anime like this, but I was surprised to find myself captivated by One Week Friends.

In a nutshell, One Week Friends is the story of a girl named Fujimiya Kaori, who loses all memories of her friends every week, and boy named Hase Yuuki, who decides to make friends with her every week, despite her forgetting all about him over and over.

Looking at that overview, I didn't expect the story to offer much, but boy was I wrong.
The manga kept me rooting for the characters ...
Feb 24, 2014
Preliminary (11/41 eps)
Having read 11 chapters, I have given this manga an overall rating of 8. I have greatly enjoyed reading it and wish a lot more chapters had been released.

PROS: I like the fluffy art-style, I enjoy the story, the characters are cool people, the story progression so far has been good and well paced and its 4koma style fits it well.

CONS: It releases rather slowly (though this is probably the translator's fault) and there are some minor plot holes when dealing with the girl's memory capabilities.

The first chapter is a very good indicator of what the rest of the chapters feel like and ...
Mar 22, 2022
Mixed Feelings
I really want to like this manga. I do. But I just can't.

I do like the concept of the story, as well as the first 5 volumes. It gives me feeling that I've been searching from a slow-burn romance story, but Volume 6 and onwards really threw me off and It goes straight down from beautiful to can't be described. When I finally had my way thorough the ending, I just can't. Why such a beautiful manga had a worst ending possible?

Thankfully this had a sequel, so I'm looking forward to it. Just reading this manga with its ridiculous ending will make you really feel ...

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Recent Forum Discussion

Poll: Isshuukan Friends. Chapter 38 Discussion
Stark700 - Dec 26, 2015
22 repliesby Starlight_maiden »»
May 9, 2022 11:38 PM
Poll: Isshuukan Friends. Chapter 37 Discussion
Stark700 - Dec 10, 2015
7 repliesby Ishiryoku »»
Jun 11, 2021 1:09 AM
Poll: Isshuukan Friends. Chapter 36 Discussion
Stark700 - Nov 25, 2015
6 repliesby Ishiryoku »»
Jun 11, 2021 12:50 AM
Poll: Isshuukan Friends. Chapter 35 Discussion
Stark700 - Oct 19, 2015
4 repliesby Ishiryoku »»
Jun 10, 2021 8:01 AM
Poll: Isshuukan Friends. Chapter 34 Discussion
Stark700 - Oct 5, 2015
5 repliesby Ishiryoku »»
Jun 10, 2021 4:13 AM