Takopi's Original Sin cover art

Takopi's Original Sin

Takopii no Genzaiタコピーの原罪

2025 · ONA · 6 eps Finished

AniList average score
86%
On AniList users' lists
146,923

What is Takopi's Original Sin about?

Takopi's Original Sin is an ONA (an anime released online first) of 6 episodes, adapted from a manga. It aired from June 28, 2025 to August 2, 2025. AniList classifies it as drama, psychological and science fiction.

A Happy alien, Takopi, lands on Earth with one mission: to spread happiness! When he meets Shizuka, a lonely fourth grader, he vows to bring back her smile using his magical Happy Gadgets. But as he uncovers the pain in her life, Takopi learns that true happiness may require more than gadgets.

Synopsis from AniList, which credits Crunchyroll. The summary above it is written by FreeAnime.xyz from AniList's data.

Themes AniList users associate with it: Denpa, Bullying, Primarily Child Cast, Aliens, Female Protagonist, Philosophy, School, Revenge, Shapeshifting, Rural.

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Where to watch and learn more

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Streaming rights differ by country and change over time. A listed title page means AniList records it for this entry; it does not confirm the title is available in your region today.

Other official links listed on AniList

Official trailer on YouTube

Main characters

Characters AniList lists in a main role, with spoiler-free notes.

  • Shizuka Kuze 久世しずか

    Main character

    A young girl whom Takopi befriends upon its arrival on Earth. She is the subject of bullying in her school due to her mother's work as a hostess and only finds solace at home with her pet dog Chappy.

    Japanese voice: Reina Ueda

  • Takopi タコピー

    Main character

    A Happian alien from the Happy Planet who resembles an octopus. Takopi's goal is to spread happiness to others through its various gadgets, though its innocent and simplistic worldview is challenged as they confront the complex morality and nature of human beings.

    Japanese voice: Kurumi Mamiya

  • Marina Kirarazaka 雲母坂まりな

    Main character

    Shizuka Kuze's classmate who is her bully, often mocking her family situation.

    Japanese voice: Konomi Kohara

  • Naoki Azuma 東直樹

    Main character

    He is the class representative and has an older brother named Junya.

    Japanese voice: Anna Nagase

Supporting characters

  • Chappy チャッピー

    Supporting character

    Shizuka Kuze's dog. It was originally her dad's dog.

    Japanese voice: Natsumi Fujiwara

  • Junya Azuma 東潤也

    Supporting character

    He is Naoki's older brother. He usually get perfect grades at school and decided to get a part-time job against his mom wishes. He has a girlfriend and a cheerful attitude.

    Japanese voice: Ryouta Oosaka

  • Marina no Haha まりなの母

    Supporting character

    AniList has no description for this character yet.

    Japanese voice: Ayumi Tsunematsu

Full cast list

Related works

Prequels, sequels, side stories and source material, as linked on AniList.

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