Monogatari Series Returns With New Long Novel Torimonogatari in September, Featuring Nadeko Sengoku as Yotsugi Ononoki’s Partner
Torimonogatari, a completely new, newly written full length novel in Nisio Isin’s Monogatari Series, will be published on September 4. The synopsis has also been revealed.

New Monogatari Series Novel Torimonogatari Announced
The Monogatari Series is a popular novel series by Nisio Isin, which has also been adapted into anime by Shaft. Beginning with Bakemonogatari, which aired in 2009, many entries in the series have been brought to the screen.
Regarding the new volume, the official X account announced, “Kodansha, September 4 release, Nisio Isin’s Torimonogatari.” The synopsis was also introduced.
Synopsis
“I think a world full of fakes like this can just perish, Onii chan.”
Tsukihi Araragi has disappeared.
She slipped past the surveillance of none other than Izuko Gaen.
The assassination order against the Phoenix is reignited.
As Yotsugi Ononoki rushes to search for the bird, her partner is the popular manga artist Nadeko Sengoku.
講談社_9月4日刊
— 西尾維新公式情報 (@NISIOISIN_info) July 6, 2026
西尾維新『鳥物語』
_____あらすじ
“こんな偽物だらけの世界は滅んじゃっていいと思うんだよね、お兄ちゃん“
阿良々木月火が失踪した。
あの臥煙伊豆湖の監視を出し抜いて。
〈不死鳥〉暗殺指令、再燃!
鳥探しに奔走する斧乃木余接の相棒は、
人気漫画家・千石撫子──!?
Source : ORICON NEWS