Shizuka Kuze
main character
ONA
8.6
My TrackerPLANNING
Episode: 0 / 6
My Score:
Anime DetailsFINISHED
Estimated watch time
2h 18m
⚡ 2 days at 5 eps/day
Tags & Tropes
Denpa95%Bullying92%Primarily Child Cast92%Aliens82%Female Protagonist80%Philosophy76%School75%Revenge73%Shapeshifting72%Rural66%
ONAFINISHED2025 SUMMER8.6 / 10 AniList score
Takopi's Original Sin
タコピーの原罪• Takopii no Genzai
Synopsis & Story
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. (Source: Crunchyroll)
Trailer
Watch on YouTubeWhere to Watch Officially
Availability, audio and subtitles vary by region and service.
Featured Cast & Voice Actors
Franchise Universe & Related Entries
Aniphoria guide
Takopi's Original Sin: should you watch it?
At a glance
Takopi's Original Sin has been exceptionally well received, with an average AniList score of 86/100 — 88% of 54,909 ratings are 8/10 or higher.
It ranks #2 highest-rated anime of all time, and #13 most popular anime of all time, and #1 highest-rated anime of 2025 on AniList.
Of the 100.3K AniList users who started it, 1.5% dropped it, so it is very rarely abandoned; 82.8K have finished it.
At about 2 h 18 min in total, it is a short commitment — a weekend binge.
Best for viewers who enjoy Drama, Psychological, Sci-Fi — especially denpa, bullying, primarily child cast, aliens.
Where it fits in the series
- Optional extras: Takopii no Genzai: Arigatou, Mata Ashita
Episodes
6 episodes are listed.
Main cast & creators
- Original creator
- Taizan 5
- Series composition
- Shinya Iino
- Character design
- Keita Nagahara
Opening & ending themes
Openings
- OP1“Happy Lucky Chappy” by ano · eps 1-
Endings
- ED1“Garasu no Sen” by Tele · eps 1-
Theme data from AnimeThemes.moe.
Takopi's Original Sin FAQ
- How many episodes does Takopi's Original Sin have?
- Takopi's Original Sin has 6 episodes of about 23 minutes each, roughly 2 h 18 min in total.
- How long does it take to watch Takopi's Original Sin?
- About 2 h 18 min back to back. At two episodes a day it takes 3 days; at one hour a day, about 3 days.
- Is Takopi's Original Sin finished?
- Yes. Takopi's Original Sin has finished airing — the final episode aired August 2, 2025.
- Is there a season 2 of Takopi's Original Sin?
- No sequel is listed for Takopi's Original Sin as of October 2026. You can continue the story in the original manga.
- Is Takopi's Original Sin based on a manga?
- Yes. Takopi's Original Sin adapts the manga by Taizan 5.
- Who sings the opening of Takopi's Original Sin?
- The opening, "Happy Lucky Chappy", is performed by ano.
- Where can I watch Takopi's Original Sin?
- Takopi's Original Sin is listed on Crunchyroll, YouTube, iQ, Netflix. Availability varies by region — check the streaming links on this page.