In 2016, a manga was produced based on a book by a decendent of Akechi Mitsuhide called 信長を殺した男/Nobunaga wo koroshita Otoko/The Man Who Killed Nobunaga. It explicitely calls itself a very slight dramatisation based on almost entirely non-fiction modern research on Oda Nobunaga, Akechi Mitsuhide and Hashiba Hideyoshi.

It pushes forward the idea that Nobunaga was a well spoken and, while very harsh against his enemies, was kind hearted to his vassals and often ignored rank and class, and that Hideyoshi knew about the Honnoji plot significantly prior and intentionally let Nobunaga die so that he would look good.

Now I'm pretty well aware that English sources for the Sengoku are considered pretty outdated, still promoting what was considered dramas and Imperial Japan produced propaganda more than 20 years ago. Even something as basic as switching to Japanese wikipedia on a well covered in English topic from the period shows massive amounts of extra information, such as significantly more estimated dates and numbers.

However my Japanese is hardly good enough to be trudging around modern Japanese textbooks. I was wondering if I could get proper talk about the accuracy of the manga, and if there is contention over the topic.