Username/Email: Password:
Manga Info
Ao no Flag  
Login to add items to your list, keep track of your progress, and rate series!
The "youth pure love" story begins when three students in their third and final year of high school meet during a time when they are worried about paths for their futures. Waiting for them are sweet, painful, and heartrending days.

Read for FREE on Manga Plus


Related Series

Associated Names
Ao no Furaggu
Bendera Biru
Blue Flag
Голубой флаг
청춘 플래그

Groups Scanlating

Latest Release(s)
c.54 (end) by MANGA Plus about 1 year ago
c.53 by MANGA Plus about 1 year ago
c.52 by MANGA Plus about 1 year ago
Search for all releases of this series

in Country of Origin
8 Volumes (Complete)

Completely Scanlated?

Anime Start/End Chapter

User Reviews


User Rating
Average: 8.2 / 10.0 (253 votes)
Bayesian Average: 8.01 / 10.0

Last Updated
May 15th 2021, 8:06pm PST



Category Recommendations





Original Publisher

Serialized In (magazine)
Shounen Jump + (Shueisha)

Licensed (in English)

English Publisher
Viz (7 Vols - Ongoing)

Activity Stats (vs. other series)
Weekly Pos #368 increased(+123)
Monthly Pos #613 decreased(-40)
3 Month Pos #621 decreased(-64)
6 Month Pos #593 decreased(-99)
Year Pos #492 decreased(-48)

List Stats
On 682 reading lists
On 391 wish lists
On 347 completed lists
On 18 unfinished lists
On 184 custom lists

Note: You must be logged in to update information on this page.

No topics currently in the forum, view the forum or add a new topic now.

tickmark preload xmark preload xmark preload
User Comments  [ Order by usefulness ]
You must login to comment for this series! Register an account.
Doesn't expect this into a gay manga, but I would still recommend it.  
by mallika23
October 6th, 2020, 2:54pm
Rating: N/A
I honestly didn't really expect this manga into a gay romance. I have a feeling though, when Ichinose told Futaba what was Toma's type, because what Toma described were all the opposites of Ichinose.

Well, not that I hate it. In fact, I love it whenever there are positive representation of the LGBT community in the popular culture such as this one. I'm not LGBT myself, but I know how (at least in my country) they were always poorly represented in the media. And this is why I don't really like the yaoi/yuri genre, since I feel that this type always oversexualize the story and character. Thankfully, Blue Flag isn't one.

However, to be fair, I was also a bit disturbed by the ending. Like the previous review said, I don't understand why Futaba and Ichinose broke up, and why Ichinose suddenly got married with Toma. It feels rushed with no clear explanation.

However, I will still give it a 9. I honestly kind of like how the pros and cons of those who agree/disagree spoken here. It's well narrated that it doesn't feel like the kind of debates you'll find in social media. Lol.
Was this comment useful?  Yes tickmark  No xmark    
Left Me a Little Angry  
by mewmewchii
July 29th, 2020, 12:44pm
Rating: N/A
I absolutely hated the ending of this manga, but it's some thing that could have been easily fixed if the mangaka didn't do a time skip, we need that build up to how the characters ended up where they are, having it so it's a happy ending just for happy ending sake leaves a bad taste in my mouth.

Spoiler (mouse over to view)
Taichi showed absolutely zero interest in dating a man yet he ended up dating Touma. Where is the build up to that? Where is the explanation as to why they ended up in that relationship. Futaba marring a different man makes sense since not all high school relationships last but it would be nice to know why they broke up. We as an audience can infer all we want but it feels unsatisfactory that we'll never really know the reason behind everything.

TL;DR- For a manga that has great foreshadowing the ending was way too abrupt, felt like it gave me whiplash.
Was this comment useful?  Yes tickmark  No xmark    
by Miachann
July 25th, 2020, 12:29am
Rating: N/A
I reread this so many time and I love the ending tbh.. i reread this again today.. and its always amaze me.. i cry, i think i just hope i can see their progress in relationship huhu, and the ending is really waw for shounen manga.. and i love it, i reread this more than 20 times already and when i read again and again its implied that Taichi already like 'likes' Touma from the start but he dont know what is it he feeling, its shows in his gesture and else.. and in the middle of stories he fall in love with Futaba and in the end he fall out of love with Futaba, Taichi and Futaba goes separated way and Touma with Taichi in that time and then Taichi choose Touma in the end, bruh i wanna see their wedding too.. and its implied the rings in Taichi hands.. tbh i love all character they were very well written.. but yea i still wanna see Taichi and Touma relationship progress huhu

... Last updated on March 29th, 2021, 3:11am
Was this comment useful?  Yes tickmark  No xmark    
Mixed Feelings  
by Suxinn
June 3rd, 2020, 9:06pm
Rating: N/A
I feel like this manga started out really strong, and there was a period of time when it felt like every chapter hit the right points, but then a certain event happened that made me lowkey put it on the backburner (and I'm not referring to the ending)...

Spoiler (mouse over to view)
Namely, I think the author REALLY mishandled Touma being outed. Like, the reactions of those around him were realistic, but the way the author framed it as if it was understandable to be a homophobe, and that the guy had the *right* to be disgusted. I was legitimately pissed off, just like the girls in the manga.

And it was also around this time I read the vastly superior Kanojo ni Naritai Kimi to Boku which also had moments like this, but whenever it happened, the author actually treated it with the gravity it deserved, and while it acknowledged that people are going to be ignorant, it never let off those people for the hurt that they caused, even if it was unintentional hurt. ...Unlike what I felt was happening in Blue Flag at the time. (And I still never felt as if the author adequately addressed it here.)

However, after hearing about what happened with the ending, I came back to it, and... Hm, I still don't know how to feel about it. I don't agree that it shouldn't have happened this way (I'm glad it did), but I also wish there had been more buildup. I feel like the author had an ending she wanted to reach, but she didn't know how to reach it, which is why it felt so clumsy.

Spoiler (mouse over to view)
Also not a fan of what Masumi's husband said about how he didn't feel secure when she's around either women or men (because she's bisexual I suppose? another nitpick: author never uses the word "bisexual"!! ugh). And that he doesn't feel like he "belongs" entirely now that he's dating her, which made me go ??? why is her bisexuality all about you?? But, again, I think this might be more of the fault of the author's framing than anything. Man, this manga... so many little missteps that just add up...

I guess this is just one of those series that I'm just going to feel ambivalent about.

... Last updated on June 3rd, 2020, 9:07pm
Was this comment useful?  Yes tickmark  No xmark    
What happened  
by kzh01
May 9th, 2020, 8:39pm
Rating: 1.0 / 10.0
what a shitshow and forced development, even an open ending or going their seperate way ending might be better than this shitshow
Was this comment useful?  Yes tickmark  No xmark    
I was surprised to learn that this ran in shounen jump.  
by teahknight
April 22nd, 2020, 2:11pm
Rating: 10.0 / 10.0
I liked it a lot. Its a manga about bisexuality for me, and a very good one to top it. Maybe the best queer manga of the year.
Was this comment useful?  Yes tickmark  No xmark    
Ending seem forced  
by zarul
April 14th, 2020, 8:47am
Rating: 8.0 / 10.0
*Spoiler Alert"

Spoiler (mouse over to view)
I'm from a country that doesn't favor gay like western country (they favor everything), so normally majority of the population oppose to it too. The reason is simple, and would be agreed by majority people of the world, to avoid problem in the society. Just being normal is safe. So, if this manga genre is yaoi, I will totally avoid this. But because i'm the guy who never read synopsis, just read manga based on the art design. So I accidentally for the first time in my life, read a sort of "lgbt" manga. However, I like the story though. Its good. Its kind of story that happen to lgbt people, how society treat them, how people around them treat them. Its sad actually. But I really hate it when people blame God, but that's not the case in this manga (japanese society is kind of godless you know). But the ending though, its kind of forced. I read comment everywhere about the ending, pro-lgbt will like it, anti-lgbt will hate it. But author state at the ending some good phrase you know, he said anything you choose will ended up hurting some people, but as long as you happy, its okay. We are not perfect. So, I really dislike the ending because Ichinose suddenly become gay. Totally rushed ending. You cant make everyone happy, right?

*Update after some thinking*

Spoiler (mouse over to view)
I dunno why this manga kind of capture my mind a bit, maybe because it is different from any manga I ever read. I think the ending is kind of open-ending. The author never tell whether Ichinose turned gay. It can be that they are just 2 buddies who love together and not practicing any gay stuff. Yeah, the last panel shows Ichinose is happy while holding hand, before gay exist in this modern world (its exist a long time ago but in secretive way not like gay parade today). No one will expect you to be gay if you holding your friend's hand. So, that's my point. They are best friend forever, buddies, childhood friend, one is gay but what if Ichinose just being sympathize with Touma & just increase the best friend power level. Right?

... Last updated on April 16th, 2020, 8:26pm
Was this comment useful?  Yes tickmark  No xmark    
irational notes ?  
by somemango
April 13th, 2020, 9:58am
Rating: 10.0 / 10.0
So some people who would have vote 10 donwgrade the note to 1 just because they didn't like the last 2 chapters ?
The note should note be emotional but reflect your impression about the entire serie. And I'm sorry whatever you think about the end, the rest of it is amazingly great and nowhere else in a scool life manga have I read young people feelings so well written.
I'm not a guy who usually put 10 but face to such absurd notation, here we go
Was this comment useful?  Yes tickmark  No xmark    
A great read!  
by puriparinari
April 10th, 2020, 5:14pm
Rating: 9.0 / 10.0
I genuinely think this manga is amazing.

Hands down one of the best things I’ve read in a while in any format. Granted, I’ve read a good deal of yaoi but not as much shonen/shojo manga in the past few years so I might be biased. Regardless, I found this story to be really unique and refreshing.

I absolutely loved the way the author tackled the topics of gender roles and expectations through characters like Mami and Toumo, as well as friendship/romantic love through Futabe. I loved that the author didn’t shy away from LGBT themes, and I appreciated the alternative perspective that the audience was granted through Kensuke's characterization. I actually think that the author displayed a lot of grace and consideration when exploring Kensuke's feelings.

On that note, this might be silly but, reading through the comment sections of the sites that I read this on, I was a bit (naively) surprised to see blatantly homophobic comments on a lot of the chapters. I know what a manga might not be enough to change people’s minds on things like this, but I’m grateful that works like this do exist if only to increase exposure and allow people to reflect on their feelings even more. As the manga explored – we all have to choose the path that we think is best for us.

I guess my only gripe is the last two chapters. I agree that they felt a little bit rushed, and I would have appreciated experiencing more of the development between Taichi and Toumo’s romantic relationship. Regardless, I don’t think this detracted from the experience, it just gave me a bit of FOMO.

Overall, I feel like this is fun, interesting, engaging work that dives deep into important themes. It sucked me right in and held me tight the whole way through. This was a work that really captivated me and will hold a special place in my memories. Highly recommended!

... Last updated on April 10th, 2020, 5:16pm
Was this comment useful?  Yes tickmark  No xmark    
Almost tear up at the end  
by jackalan
April 10th, 2020, 1:31am
Rating: 9.0 / 10.0
If you're looking for a really good manga to read, this has everything for you: great and consistent arts; thoughtful, forward and progressive characters (all of them); a story of friendship and love; a story of self-discovery, -acceptance and -understanding.

The most impressive of all in this manga for me is the communication and thoughtfulness of the characters. I'm a grown adult yet I'm always surprised to see how the characters' thoughts and feelings are all communicated so clearly. Of course, there will be times where they hesitate, they bottleneck, or they refuse to see something new. They all come to accept and understand that: It is OKAY to take time, to be at your own pace, come to your own terms, make your decisions, reflect and continue to go on, go forth, to whichever path and direction no matter the conflicts, confusions or considerations one might have.

Life is a long journey for you, yourself to continuously learn about yourself: to adapt maybe for the better, or to change to how you see fit.

It's great the dialogue too. I still get goosebumps remembering Touma's friends arguing over their stances for him while Ichinose just sits there listening; or how Futaba and Touma have a heart-to-heart conversation about how they feel about the other, about Ichinose, and how they might choose to move forward with themselves and others; or how Masumi describing feelings and words and how we can choose to be non-conformed and it's okay...

I repeat: I'm an adult and I still learn so much from these high school characters!

And with that, the story concludes.

If you're looking for a more traditional, more well-defined/accepted romantic story. This is not it. It's about "self". No matter how vague or ambiguous it or one might be - and we might never know what happen to Ichinose, Touma and Futaba in those two years and five years after high school - be kind and be happy for the decisions they make and will continue to make in the future.
Was this comment useful?  Yes tickmark  No xmark    
Pages (2) [ 1 2 ]
 per page 
You must login to comment for this series! Register an account.