Isshuukan Friends.

Alt title: One Week Friends.

If you're looking for manga similar to Isshuukan Friends., you might like these titles.

ReLIFE

ReLIFE

Arata Kaizaki (27) quit the job he landed after graduation in only three months. His life did not go well after that. Now his parents are threatening to stop sending money, and want him to come back to the country. He has no friend or girlfriend to share his troubles with...as he hits rock bottom a strange man named Ryo Yoake appears. Yoake invites Kaizaki to join a societal rehabilitation program for NEETs called ReLife. This program uses a mysterious drug to make him look younger, and sends him back to high school for a year...

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Reasons you might like ReLIFE...

OutOfTheBlue OutOfTheBlue says...

Isshuukan Friends.' Fujimiya really resembles RELIFE's Hishiro in that they both have trouble making friends, but they try really hard and in the end they are able to change. In both cases, the authors excellently show the evolution of all their characters, creating a heartwarming, coming of age story. Also, it could be said that, though to different extents and in different ways, both the Isshukan Friends anime and the ReLIFE manga address the issue of memory loss for the protagonists.

Seishun For-get!

Seishun For-get!

"Live with Sincerity" is Natsuki Taiyou's motto. It's the first day of high school, Taiyou was heading to school and then he meets Hinata during the way there. He fell in love at first sight and suddenly confessed to her. Her answer was yes but then she ran away without saying who she was, but it turns out that she was his classmate. Taiyou felt a destiny between them. However, on the next day, she doesn't remember who he is. Why could that be...?

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I Want to Eat Your Pancreas (Light Novel)

I Want to Eat Your Pancreas (Light Novel)

In this deeply moving first-person story, a high school boy finds the diary of his classmate—and discovers that she’s dying. Yamauchi Sakura has been silently suffering from a pancreatic disease in school, and now exactly one person outside her family knows. He swears to her that he won’t tell anyone what he learned, and the shared secret brings them closer together. The two have very little in common, but they find themselves drawn to each other in Sakura’s final months to live.

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I Want to Eat Your Pancreas

I Want to Eat Your Pancreas

In this deeply moving first-person story, a high school boy finds the diary of his classmate—and discovers that she’s dying. Yamauchi Sakura has been silently suffering from a pancreatic disease in school, and now exactly one person outside her family knows. He swears to her that he won’t tell anyone what he learned, and the shared secret brings them closer together. The two have very little in common, but they find themselves drawn to each other in Sakura’s final months to live.

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Golden Time

Golden Time

College freshman Tada Banri has a very questionable past. Eager to make a fresh start, Banri enrolls in an enlite Tokyo law school and soon befriends fellow freshman Yanasigawa Mitsuo--but it appears his new pal has some baggage of his own. Her name is Kaga Kouko, another new student, who slaps Mitsuo across the face with a bouquet of roses. Just who is this intimidating beauty and what is her connection to Mitsuo? And what does this all mean for Banri's dreams of a blissful college life?

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Golden Time (Light Novel)

Golden Time (Light Novel)

Banri Tada is a newly admitted student at a private law school in Tokyo. However, due to an accident, he lost all of his memories.  During his freshman orientation, he encounters another freshman from the same school, Mitsuo Yanagisawa, and they hit it off at once.  Without any memory of each other, their lives become more and more intertwined as if set by the hands of fate. But what is their fate, and will it lead to happiness or another memory to forget…

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Kiss Shite Kurenakya Shinjau

Kiss Shite Kurenakya Shinjau

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Tokidoki

Tokidoki

What do you spend the time left of your life when it's measured in heartbeats? This is the story of Hato Iijima and Hatsu Takagi, connected to each other by a rare disease called "Tempocardy".

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Zassou-tachi yo Taishi wo Idake

Zassou-tachi yo Taishi wo Idake

For average girls, high school is a time of insecurity, of finding yourself and railing against your imperfections. In one particular high school, five average, unpopular girls take life one day at a time, learning as they go, and stumbling as they try to find their footing.

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Hot Gimmick S (Light Novel)

Hot Gimmick S (Light Novel)

Hatsumi Narita lives in a typical company housing complex with her seemingly typical family, but the dramatic turn her life is about to take is anything but, well, typical. Her precocious younger sister Akane is way too popular with boys, her childhood friend Azusa, now a hunky male model, might want to ruin her life, her super-mean and very privileged neighbor Ryoki considers her his slave, and her dreamy older brother Shinogu might not be what he seems at all. What is a hapless heroine to do?

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