My Tiny Senpai

My Tiny Senpai (うちの会社の小さい先輩の話) is a Japanese manga series written and illustrated by Saisō. It has been serialized in Takeshobo's Storia Dash website since April 2020, with its chapters collected into eight tankōbon volumes as of February 2024. An anime television series adaptation produced by Project No.9 aired from July to October 2023.

Plot
Takuma Shinozaki is an office worker who is being mentored by a beautiful and diminutive young woman named Shiori Katase. Serving as his senpai, she likes to coddle him to ensure that he feels as relaxed as possible. In love with Katase, Shinozaki hopes that the time she spends with him is something more than just professional courtesy.

Characters

 * Shiori Katase (片瀬 詩織里)
 * Katase is a beautiful, kind, and diminutive young woman who serves as Shinozaki's senpai. She likes to make sure that Shinozaki feels comfortable while she is mentoring him. Initially oblivious to Shinozaki's crush on her, Katase slowly starts to develop feelings for him as they spend time together.
 * Katase is a beautiful, kind, and diminutive young woman who serves as Shinozaki's senpai. She likes to make sure that Shinozaki feels comfortable while she is mentoring him. Initially oblivious to Shinozaki's crush on her, Katase slowly starts to develop feelings for him as they spend time together.


 * Takuma Shinozaki (篠崎 拓馬)
 * Shinozaki is a good-natured and timid office worker who serves as Katase's kōhai. He falls in love with Katase at first sight and only grows closer to her every day, hoping his relationship with her will blossom into something more than just coworkers. He often daydreams about Katase, which makes his crush on her all the more obvious to his coworkers, much to his embarrassment.
 * Shinozaki is a good-natured and timid office worker who serves as Katase's kōhai. He falls in love with Katase at first sight and only grows closer to her every day, hoping his relationship with her will blossom into something more than just coworkers. He often daydreams about Katase, which makes his crush on her all the more obvious to his coworkers, much to his embarrassment.


 * Chinatsu Hayakawa (早川 千夏)
 * Hayakawa is a childhood friend of Shinozaki's who works in the same department as him and Katase. An otaku, it is implied she secretly has feelings for Akina, even though he is completely oblivious.
 * Hayakawa is a childhood friend of Shinozaki's who works in the same department as him and Katase. An otaku, it is implied she secretly has feelings for Akina, even though he is completely oblivious.


 * Chihiro Akina (秋那 千尋)
 * Akina is a department manager who is Katase, Shinozaki, and Hayakawa's boss. He likes to imagine his employees in different romantic scenarios, though is completely unaware of Hayakawa's secret feelings towards him.
 * Akina is a department manager who is Katase, Shinozaki, and Hayakawa's boss. He likes to imagine his employees in different romantic scenarios, though is completely unaware of Hayakawa's secret feelings towards him.


 * Yutaka Shinozaki (篠崎 豊)
 * Yutaka is Takuma's older sister. Due to her obsession with cute things, she approves of Katase's good looks and cute charms, and wants her brother to marry her.
 * Yutaka is Takuma's older sister. Due to her obsession with cute things, she approves of Katase's good looks and cute charms, and wants her brother to marry her.

Manga
Written and illustrated by Saisō, My Tiny Senpai began serialization in Takeshobo's Storia Dash website on April 3, 2020. The first tankōbon volume was released on October 30, 2020. As of February 2024, seven volumes have been released.

Anime
An anime television series adaptation was announced on October 17, 2022. It was produced by Project No.9 and directed by Mitsutoshi Satō, with scripts written by Keiichirō Ōchi, Yasuko Aoki, and Satoru Sugizawa, characters designed by Hayato Hashiguchi and Hiromi Ogata, and music composed by Sumika Horiguchi. The series aired from July 2 to October 1, 2023, on TV Asahi's NUMAnimation block. The opening theme song is "Honey" by Tōya Kobayashi, while the ending theme song is "Sugar" by YU-KA. Crunchyroll licensed the series, and is streaming it along with an English dub.

Reception
In 2020, My Tiny Senpai ranked 11th in the Next Manga Awards in the web manga category. By August 2023, the manga had over one million copies in circulation.