TV series
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.
Streaming, rental and purchase options
Checked Jul 22, 2026
Takopi's Original Sin is available to stream on Crunchyroll Premium (Via Amazon Prime) in United States. You can also buy it from Amazon and Apple TV. Use the direct links below to open the provider.
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.
Choose an episode, then use the watch options above for the show.
Episode 1
Shizuka lives a painful life until things start to take a sudden turn when she meets an alien named Takopi.
Directed by Shinya IinoWritten by Shinya IinoGuest stars Ayumi Tsunematsu, Natsumi Fujiwara, Mari Hino, Hiyori Kouno, Natsumi Kawaida, Niina Nakabayashi, Asaki Yuikawa, Mamiko Noto
Episode 2
Takopi makes various attempts to help Shizuka, but things don't seem to work in his favor.
Directed by MoaangWritten by Ko NekotaGuest stars Ayumi Tsunematsu, Natsumi Fujiwara, Mari Hino, Hiyori Kouno, Natsumi Kawaida, Niina Nakabayashi, You Taichi, Shinji Kawada
Episode 3
Takopi realizes something important while covering up the crime with Shizuka and Naoki.
Directed by Eri IreiWritten by Shinya IinoGuest stars Ayumi Tsunematsu, Shinji Kawada, Ryota Osaka, Yumi Uchiyama, Haruka Sato, Kenta Sasa, Soshiro Hori, Yu Akiba
Episode 4
Naoki struggles between his conscience and his desire to help Shizuka.
Directed by Toya OshimaWritten by Ko NekotaGuest stars Hiyori Kouno, Natsumi Kawaida, Niina Nakabayashi, Asaki Yuikawa, Ryota Osaka, Yumi Uchiyama, Wakana Maruoka, Reo Osanai
Episode 5
Shizuka goes to Tokyo, and Takopi remembers something very important that happened in the past.
Directed by Hirotaka MoriWritten by Ko NekotaGuest stars Ayumi Tsunematsu, Mamiko Noto, Yujiro Kakuda, Saeko Oki, Natsumi Fujiwara, Ryouko Jyuni, Risae Matsuda, Mayuko Kazama
Episode 6
Takopi makes an important decision that will save not only Shizuka but also Marina and Naoki.
Directed by Shinya Iino, Masayuki SakoiWritten by Shinya IinoGuest stars Hiyori Kouno, Natsumi Kawaida, Niina Nakabayashi, Reo Osanai, Rika Hayashi
Episode information updated Jul 23, 2026
Kurumi MamiyaTakopi (voice)
Reina UedaShizuka Kuze (voice)
Konomi KoharaMarina Kirarazaka (voice)
Anna NagaseNaoki Azuma (voice)
Ayumi TsunematsuMarina's Mother (voice)
Mari HinoTeacher (voice)
Hiyori KounoMarina's Friend (voice)
Natsumi KawaidaMarina's Friend (voice)
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