Japan's conservative press and even some middle-of-the-road publications are lining up to criticise the left-leaning Asahi Shimbun in a campaign that media-watchers suggest is a widening of the trend of reinterpreting the nation's history.
The Asahi has always been a political opposite of the Yomiuri Shimbun, the Sankei Shimbun, the Yukan Fuji and a host of related monthly news magazines, but those differences of opinion have now boiled over into open warfare in the editorial pages.
The trigger was the admission by the Asahi in early August that there were inaccuracies in its reporting dating back to the 1980s on the comfort women issue.
The paper retracted parts that focused on the mobilisation of sex slaves on the Korean peninsula based on the testimony of former soldier Seiji Yoshida.
Yoshida's "memories" of the Japanese military rounding up women on Jeju Island and forcing them to become sex slaves were made before the Japanese government in 1993 issued the Kono Statement, the blanket apology to Asian women forced into sexual slavery by Japan in the early decades of the last century.
By the end of the 1990s, Yoshida's recollections were considered suspicious, but the Asahi stood by its reports, until now.
The conservative media is not satisfied with the retraction, however, with the Yomiuri describing it as "evasive commentary" and expressing surprise at the "lack of an apology".
The Yomiuri has now expanded its criticism to accuse the Asahi of misrepresenting Masao Yoshida, the manager of the Fukushima Dai-Ichi nuclear power plant when it was destroyed by an earthquake and tsunami in March 2011.
The Asahi insists that workers disobeyed Yoshida and evacuated the plant when the scale of the crisis became clear.
Masao Yoshida gave testimony to an investigative committee but asked that it not be released to the public. After his death in 2013, however, the government released the transcript, which deflects criticism away from the workers and on to the administration of former prime minister Naoto Kan. The Yomiuri claims the Asahi "caused serious misunderstandings among the international media".
The debate over Seiji Yoshida's wartime "memories" may be another effort by conservative media to tarnish their rival's name, but their real target appears to be the blanket denial that the sex slaves were anything more than common prostitutes, media critics say.
"It's a similar mentality to Holocaust deniers [saying] if one piece of testimony is shown to have been faked or erroneous, then that is proof that whole thing never happened," said Mark Schreiber, a media commentator on social trends.
"Once the denials gather momentum, they can then be used as a springboard to deny other wartime atrocities, like the Nanking massacre," he said.
"Denial is on a roll in Japan," he said, and that is in turn empowering groups such as the Society for the Dissemination of Historical Fact "to come out of the shadows and pursue their claims more aggressively".
With a seemingly unending barrage of criticism from China and South Korea over historical issues that the Japanese had hoped would diminish over time, the domestic attacks on the Asahi seem to be hitting home.
"Japanese people may be feeling they are beset from all directions and their ability to tolerate such criticisms is definitely wearing thin," Schreiber said.
"The process of denial is becoming more of a self-defence mechanism for the Japanese, with the mindset that it doesn't matter whether something happened or not, just as long as something is done to tone down the fervour of the attacks."