is a Japanese web manga series written and illustrated by Fuyu Azuma. It was serialized on Niconico Seiga's Dra Dra Sharp# website from June 2018 to June 2023. An anime television series adaptation produced by Studio Polon aired from October to December 2025.
Ota frequently makes fun of his classmate, Kashiwada, because her expression never changes. However, his prank never succeeds, mainly due to her getting clued in by his own extremely expressive face. Unbeknownst to them, Kashiwada does change expression, but can be hardly noticed, including her crush towards Ota.
Written and illustrated by Fuyu Azuma, Inexpressive Kashiwada and Expressive Oota started on Niconico Seiga's Dragon Dragon Age on June 22, 2018; the site was renamed Dra Dra Sharp# in December 2018. The series finished on June 9, 2023. Fujimi Shobo collected its chapters in ten volumes, released from December 7, 2018, to July 7, 2023. A promotional video animated by Seven Arcs was released on October 3, 2022; Yui Kinoshita directed, supervised, designed the characters, and wrote the storyboard for the PV. Risa Yoshida was an animation director.
In North America, the manga is licensed for digital English release by Kadokawa.
A spin-off manga series also illustrated by Azuma, titled , began serialization on the same website on October 13, 2023. As of December 9, 2025, three volumes has been released.
An anime television series adaptation was announced on March 14, 2025. It is produced by Studio Polon and directed by Tomohiro Kamitani, with Michiko Yokote handling series composition, Naoto Nakamura designing the characters and serving as chief animation director, and Yukari Hashimoto and Tetsuya Shitara composing the music. The series aired from October 4 to December 20, 2025, on Tokyo MX and other networks. The opening theme song is , performed by Hashimero, while the ending theme song is , performed by Sangatsu no Phantasia. Crunchyroll is streaming the series.