The creator of NIPPON SANGOKU, Ikka Matsuki, has deactivated their official X account following a series of posts discussing fan interpretations of the manga and asking readers not to directly share sexually explicit fanworks featuring characters from the series.
Before deactivating the account, Matsuki apologized for using emotional language, clarified that they appreciated fan art, and emphasized that they were only asking fans to respect personal boundaries. However, the posts quickly sparked widespread debate across Japanese social media, where the discussion expanded far beyond the creator’s original message.
While many online discussions became centered around Boys’ Love (BL) fanworks, others argued the issue was ultimately about respecting a creator’s wishes rather than fanworks themselves. The controversy has since become one of the most widely discussed creator–fan disputes in Japan, prompting conversations about shipping culture, fandom etiquette, and where the line should be drawn between fan interpretation and an author’s own vision.
“Please Continue to Let Me Draw Freely”
The discussion began after Matsuki published a post expressing frustration over how some readers were interpreting the series and reacting to bonus illustrations and behind-the-scenes content that had long been shared with fans during breaks in serialization.
The creator wrote:
“I know readers are becoming more diverse, but please continue to let me draw freely as I always have.”
Matsuki continued by saying:
“You are trying to see something that isn’t there.”
The post ended with what would become one of the most widely shared quotes from the controversy.
“It feels as though the characters I created have had their brains replaced and turned into something completely different. It is simply painful.”
The message quickly spread across Japanese social media, with readers offering widely different interpretations of what the creator was trying to express.
Author Later Apologized for the Wording
As discussion continued to grow, Matsuki later published a much longer statement apologizing for the wording of the earlier post.
The author wrote:
“Earlier, I let my emotions take over and failed to express myself carefully enough. I sincerely apologize.”
Matsuki explained that personal illustrations, sketches and small bonus stories had originally been shared simply as extra content for readers, particularly during serialization breaks. According to the author, those posts were never intended to change readers’ interpretations or hurt anyone.
The creator also revealed that personal posts had previously been moved away from X to another social media platform in consideration of readers who preferred not to see them. However, Matsuki said direct criticism eventually continued there as well, leaving the author emotionally exhausted.
“There is no intention of hurting anyone through my illustrations or bonus sketches. I will continue drawing them whenever I find time between working on the manuscript, so if they are not something you enjoy, I would be grateful if you could simply keep a comfortable distance.”
The apology also made one point especially clear.
Despite the ongoing controversy, Matsuki stressed that fan artists themselves were not the problem.
“I Always Enjoy Looking at Fan Art”
The statement explicitly thanked readers who create artwork inspired by NIPPON SANGOKU.
Matsuki wrote:
“I always enjoy looking at fan art. I am grateful to everyone who puts their heart into my work and draws it.”
However, the author also explained that there were certain kinds of fan creations they personally preferred to keep some distance from.
“As for some fan creations that contain sexual expressions, I also keep my distance from them when necessary. I understand there is no ill intent, but I would appreciate it if you would refrain from sharing them directly with me.”
The statement concluded with another apology for allowing emotions to influence the wording of the original post.
Why Did BL Become the Center of the Discussion?
Although Matsuki never referred specifically to BL in the apology itself, the controversy quickly became associated with Boys’ Love fanworks featuring characters from NIPPON SANGOKU.
For many international readers, that connection may appear sudden. However, longtime readers have pointed out that discussions surrounding BL pairings had already become increasingly common following the series’ television anime adaptation in April 2026.
Unlike many action manga, NIPPON SANGOKU primarily follows a cast of male political leaders, military commanders and strategists. Much of the story focuses on the close partnership between protagonist Aoteru and fellow commander Tsune, leading many fans to create BL interpretations and fanworks involving the pair after the anime introduced the series to a significantly larger audience.
At the same time, the manga itself establishes official heterosexual relationships within its story. Aoteru’s late wife Saki remains an important figure throughout the narrative, while Tsune is married to Shiori. Matsuki had previously clarified on social media that Aoteru and Tsune were not written with romantic intent and that the manga’s official relationships had not changed.
Anime Success Also Brought a Much Larger Fandom
According to a widely shared timeline compiled by longtime readers on the Japanese blogging platform Hatena Anonymous, the anime adaptation dramatically expanded NIPPON SANGOKU’s audience, bringing in many new readers whose interpretations differed from those of earlier fans.
The community timeline claims that several different groups within the fandom gradually began clashing over the series.
One group enjoyed BL interpretations of the characters and shared shipping content online. Another group, often described in Japanese fandom as “yume” fans, preferred imagining romantic relationships between themselves and individual characters. Meanwhile, readers who preferred the manga’s official relationships increasingly pushed back against both interpretations.
The timeline also notes that Matsuki had been posting bonus illustrations, scrapped ideas and small pieces of extra content long before the anime adaptation. Those posts had previously been accepted as a normal part of interacting with readers. However, after the anime attracted a much larger audience, the creator reportedly began receiving far more responses from readers saying those illustrations conflicted with how they personally viewed the characters.
According to the same community timeline, Matsuki eventually moved many personal posts from X to Instagram in an attempt to avoid those reactions. Even so, similar responses reportedly continued there as well.
BL Debate Quickly Spread Beyond the Manga’s Existing Fanbase
Although Matsuki’s posts referred broadly to fan creations containing sexual expressions, discussion across Japanese social media quickly became centered on Boys’ Love (BL) fanworks based on NIPPON SANGOKU.
Many readers viewed the creator’s request as being directed at sexually explicit BL fanworks that had become increasingly visible following the anime adaptation. Others argued the issue was not BL itself, but the act of directly sending or sharing those works with the creator despite the author’s personal discomfort.
As the discussion spread beyond the manga’s readership, Matsuki’s posts began circulating among users who were unfamiliar with the series itself. Some social media users criticized the creator’s wording and accused Matsuki of being homophobic or hostile toward BL fanworks.
At the same time, many readers defended the creator, arguing that Matsuki had never asked fans to stop creating BL fanworks altogether. Instead, they pointed to the author’s own apology, where Matsuki thanked fan artists for their support while specifically requesting that sexually explicit fanworks not be shared directly with the creator.
The disagreement soon evolved into a much broader discussion about creator boundaries, fan interpretation, and the relationship between authors and their audiences online.
Community Timeline Suggests Months of Growing Pressure
While Matsuki did not explain every detail that led to the posts, a widely shared timeline compiled by longtime readers on the Japanese blogging platform Hatena Anonymous paints a picture of pressure gradually building over several months.
According to that community timeline, Matsuki had been posting bonus illustrations, scrapped concepts and behind-the-scenes material long before the anime adaptation. Those posts were familiar to longtime readers and were generally treated as harmless extras shared during serialization breaks.
However, after the anime dramatically expanded the series’ audience, each new illustration reportedly began attracting increasing numbers of quote posts and replies from readers expressing disappointment that the official portrayal of certain characters did not match their own interpretations.
The timeline claims that some readers interpreted the close relationship between Aoteru and Tsune romantically, while others preferred the manga’s established relationships with Saki and Shiori. At the same time, another section of the fandom reportedly became attached to their own personal interpretations of individual characters.
According to the community reconstruction, these different expectations eventually collided whenever Matsuki shared new artwork or behind-the-scenes material.
Although many of those details cannot be independently confirmed, they closely mirror the creator’s own comments that every announcement was increasingly met with “cries” from readers and that it had become painful to see characters interpreted as someone completely different from how they had originally been written.
What Remains Unconfirmed
As the controversy continued to grow, numerous claims about what specifically triggered Matsuki’s posts began circulating across social media.
Some users claimed the creator’s comments were prompted after receiving BL fanworks directly. Others connected the controversy to previous illustrations shared on Instagram or to earlier debates surrounding the manga’s characters.
However, Matsuki has not publicly confirmed any single incident that led to the posts.
Likewise, while many discussions have focused specifically on BL fanworks, the creator’s own apology refers more broadly to fan creations containing sexual expressions, without identifying any particular fan or community.
For that reason, many of the specific scenarios currently circulating online should be regarded as community interpretations rather than confirmed facts.
Creator Boundaries Become the Bigger Discussion
Regardless of where individual readers stood, the incident quickly evolved beyond a single fandom dispute.
For some, the controversy became a discussion about whether creators should be expected to accept every interpretation of their characters once a work enters the public sphere.
For others, it highlighted the importance of respecting an author’s personal boundaries, particularly when it comes to directly sharing sexually explicit fan creations.
Matsuki’s own apology reflected that distinction. Rather than rejecting fan art entirely, the creator repeatedly expressed gratitude toward readers who create artwork inspired by NIPPON SANGOKU, while asking only that certain works not be shared directly.
Shortly after publishing the apology, Matsuki’s X account was deactivated. The creator has not publicly explained whether the account was removed because of a specific incident or due to the broader controversy that followed.
The discussion, however, continues across Japanese social media, with many viewing the incident as another example of the increasingly complex relationship between creators and online fandoms in the age of social media.
Bookmark Otaku Mantra for more manga and anime industry news and updates!
About NIPPON SANGOKU
NIPPON SANGOKU is a Japanese manga series written and illustrated by Ikka Matsuki. Serialized through Shogakukan’s MangaONE platform, the series is set in a fictional future where Japan has collapsed and split into three rival nations competing for control of the country. Drawing inspiration from China’s classic historical novel Romance of the Three Kingdoms, the manga combines large-scale warfare, political intrigue, military strategy and character-driven storytelling.
The story follows Aoteru, a young strategist who dreams of reunifying Japan, alongside a large cast of political leaders, generals and military commanders. Among the series’ central relationships is Aoteru’s partnership with Tsune, a bond built on trust and shared ambition that has become one of the manga’s defining dynamics.
Following its 2026 television anime adaptation, NIPPON SANGOKU reached a significantly wider audience both in Japan and overseas. The anime introduced many new viewers to the series, contributing to increased online discussion surrounding its characters, relationships and fan interpretations.
Despite the recent controversy surrounding the creator’s social media posts, NIPPON SANGOKU remains one of MangaONE’s most talked-about ongoing titles, praised for its detailed world-building, mature political themes and unique take on historical strategy storytelling.
Those claims are consistent with Matsuki’s own explanation in the apology, where the author wrote that posts had been moved to another platform out of consideration for readers, but that direct criticism eventually followed there too.
