A fourth-grader investigates the mysterious reason behind the sudden appearance of penguins in his village, which is somehow related to a power from a young woman working at a dental clinic.
- Year: 2018
- Country: Japan
- Genre: Animation, Adventure, Comedy, Fantasy
- Studio: Studio Colorido, KADOKAWA, TOHO, dentsu, Sony Music Entertainment, Fuji Television Network
- Keyword: based on novel or book, penguin, coming of age, school, anime
- Director: Hiroyasu Ishida
- Cast: Kana Kita, Rie Kugimiya, Yu Aoi, Miki Fukui, Misaki Kuno, Megumi Han