干物妹！うまるちゃん 秘密のうまるちゃん · 2017

Himouto! Umaru-chan: The Secret Umaru-chan

Masahiko Ohta · 23 min · Japan

Unaired special of “Himouto! Umaru-chan” included with the manga’s tenth compiled volume. Realizing it is Taihei's birthday, Umaru asks Nana for advice on what to do for him. Umaru decides to act like an ideal sister and spend time with Taihei, only to discover that he prefers her the way she is. Later, as the girls begin their summer vacation by going to a swimming pool, Umaru wonders if she should stop putting on an act in front of her friends and reveal that she, Komaru, and UMR are the same person. As Umaru becomes conflicted over what will happen if she tells everyone, her friends assure her that she doesn't need to reveal her secrets if it'd just make her suffer. Relieved by the support of her friends, Umaru makes the decision to continue hiding her secret.

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Production companies

Doga Kobo

Cast

• 

  Aimi Tanaka

  Umaru Doma (voice)

• 

  Kenji Nojima

  Taihei Doma (voice)

• 

  Akari Kageyama

  Nana Ebina (voice)

• 

  Haruka Shiraishi

  Kirie Motoba (voice)

• 

  Yurina Furukawa

  Sylphinford Tachibana (voice)

• 

  Hiroki Maeda

  Yukio Takematsu (voice)