Ueno Naoya passed away on September 25, the announcement was made by the profile of Masyo magazine, which was the magazine that Ueno Naoya published his manga.
三和出版 コミックマショウ編集部 pic.twitter.com/FlFz3PpZuy
— コミックマショウ編集部 (@comicMasyo) November 21, 2022
The cause of death was not informed, but fans going to the author’s profile discovered messages from him since the summer saying that he was in poor health.
In a macabre way, Ueno’s last post on his profile was on September 2nd, to which he posted: “I’m dying, help me”.
— ウエノ直哉 (@hilandiaman) September 3, 2022
Although the cause of death has not been said, fans are already speculating what may have caused him to die, there are some comments on this post above.
Ueno Naoya was a hentai mangaka, who published his manga as mentioned above in Masyo magazine.