In the Heart of Kunoichi Tsubaki (known in Japan as Kunoichi Tsubaki no Mune no Uchi), a ninja comedy manga by Soichiro Yamamoto (author of Teasing Master Takagi-san), is being adapted into a TV anime for 2022, and now a promotional video for the original manga has been published featuring narration by Tsubaki (CV: Yuko Natsuyoshi), the titular ninja with the troubled heart.
The In the Heart of Kunoichi Tsubaki TV anime is directed by Takudai Kakuchi and features animation production by CloverWorks.
The original In the Heart of Kunoichi Tsubaki manga is serialized by Shogakukan in their Monthly Shōnen Sunday manga magazine.