A mysterious woman who works at the dental office and also coaches Aoyama in chess. She has memories of her parents and growing up by the coast. ~!It is revealed she is from the world of the sphere.!~

Budding genius Aoyama is only in the 4th grade, but already lives his life like a scientist. When penguins start appearing in his sleepy suburb hundreds of miles from the sea, Aoyama vows to solve the mystery. When he finds the source of the penguins is a woman from his dentist’s office, they team up for an unforgettable summer adventure!
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(Source: Eleven Arts)

Yuu Aoi is a Japanese actress and model. She made her film debut as Shiori Tsuda in Shunji Iwai's 2001 film All About Lily Chou-Chou. She subsequently portrayed Tetsuko Arisugawa in Hana and Alice (2004), also directed by Iwai, Kimiko Tanigawa in the hula dancing film Hula Girls and Hagumi Hanamoto in the 2006 live-action adaptation of the popular Honey and Clover manga series.

She has won numerous awards for her performances on screen, including the prestigious Japan Academy Prize and Kinema Junpo Awards for Best Supporting Actress in 2007 for Hula Girls and Rookie of the Year for continued performances in the field of Films in Media and Fine Arts by the Ministry of Education, Culture, Sports, Science and Technology of Japan in 2009.

[Website](http://www.erikalynnharlacher.com/) | [Twitter]( https://twitter.com/ErikaHarlacher) | [Instagram]( https://www.instagram.com/withakinsta/) | [Facebook](https://www.facebook.com/ErikaHarlacherVoice/) | [Twitch]( https://www.twitch.tv/withakgames) | [Wiki (en)](https://en.wikipedia.org/wiki/Erika_Harlacher)

Erika Harlacher is an American voice actress based in the Los Angeles area who has provided voices for English dubbed anime shows such as: Ami Kawashima in Toradora!, Mimori Togo in Yuki Yuna is a Hero, Asseylum Vers Allusia in Aldnoah.Zero, Elizabeth Liones in The Seven Deadly Sins, Kurapika in Hunter x Hunter, Hailey Anne Thomas in Yo-kai Watch and Ann Takamaki in Persona 5. (both the anime adaptation and the game). She also dubs games, such as: Kyoko Kirigiri in Danganronpa games and the English voice for Kaede Akamatsu in Danganronpa V3: Killing Harmony, Manae Miyakoshi/Yumeno in Yakuza: Like  a Dragon

She also streams herself playing video games on Twitch.

One day, penguins are spotted in the suburban town that fourth-grader Aoyama calls home. The penguins make their sudden appearance in a residential district—nowhere near the ocean—and disappear just as mysteriously. Where could they have come from, and where did they go? Aoyama is determined to get to the bottom of it! This is the slightly curious, unforgettable tale of that summer.
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(Source: Yen Press)

Onee-san