To Your Eternity
A NHK G Original
An immortal entity arrives on Earth with no name or past and learns about life by taking on shapes it observes. At first it mimics simple forms, then becomes a human child to better understand people and language. Moving through different villages and eras, it forms fragile bonds with humans,... Read more
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Streaming availability last verified: February 03, 2026
About To Your Eternity
An immortal entity arrives on Earth with no name or past and learns about life by taking on shapes it observes. At first it mimics simple forms, then becomes a human child to better understand people and language. Moving through different villages and eras, it forms fragile bonds with humans, experiences deep loss, and gradually builds an identity out of memories and the faces it has known. The series follows that process, showing how contact with others changes something that was supposed to be endless and indifferent, and how small acts of care teach an immortal being what being human feels like. A mysterious, unseen observer occasionally sets the entity on new paths, leaving unanswered questions about purpose and creation.
To Your Eternity premiered in 2021 as an anime adaptation of Yoshitoki Oima's manga, with Shinzo Fujita credited among the creators. The English-subtitled and dubbed releases featured Reiji Kawashima, Kenjiro Tsuda, Tomori Kusunoki, and other notable voice actors, globally popular.
It hasn't been widely decorated with major industry awards, yet critics and viewers singled out its storytelling and character work in year-end lists and anime community polls. Any formal award mentions tend to be within genre-specific or fan-voted categories rather than mainstream film and television prizes, and remains widely discussed.
The show prompted strong online conversations about empathy, grief, and what memory means, and inspired a steady stream of fan art and essays. Quiet, sorrowful sequences became frequently shared highlights, and the series helped broaden discussions about emotional risk in mainstream shonen-style anime. Podcasts and essays picked up its themes.
Critical response has generally been positive, with an 8.2/10 audience score based on 297 votes reflecting strong fan approval. Reviewers praised its animation, melancholic tone, and willingness to linger on loss. Core themes include mortality, identity formed through relationships, compassion across cultures, and the cost of remembering, though opinions vary.
Details
- Release Date
- April 12, 2021
- Episode Length
- 25m
- Rating
- TV-14
- User Ratings
- 300 votes
- Type
- TV Series
- Seasons
- 3
- Episodes
- 62
- Network
- NHK G, NHK Educational TV
- Status
- Returning Series
- Genres
- Animation, Action & Adventure, Sci-Fi & Fantasy
- Country
- Japan
- Studio
- Brain's Base +4 more
- External Links
- View on IMDB
Official Trailer
Cast
Reiji Kawashima
Fushi (voice)
Kenjiro Tsuda
The Beholder (voice)
Tomori Kusunoki
Mizuha (voice)
Megumi Han
Yuki Aoki (voice)
Yumiri Hanamori
Satoru (voice)
Aya Uchida
Hanna (voice)
Fukushi Ochiai
Kazumu Tamaki (voice)
Chiharu Sawashiro
Suzuhiko Senba (voice)
Aoi Koga
Aiko (voice)
Shouto Kashii
Kazumitsu (voice)
Created by: Shinzo Fujita, Yoshitoki Oima
Seasons (3 seasons, 62 episodes)
Season 1
20 episodes - 2021
Season 2
20 episodes - 2022
Season 3
22 episodes - 2025