Yuuki Yuuna wa Yuusha de Aru: Washio Sumi no Shou 3 - Yakusoku

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Alternative Titles

Synonyms: Yuki Yuna Is A Hero: Washio Sumi Chapter 3 - Promise
Japanese: 結城友奈は勇者である -鷲尾須美の章- 第3章「やくそく」


Type: Movie
Episodes: 1
Status: Finished Airing
Aired: Jul 8, 2017
Producers: Pony Canyon
Licensors: None found, add some
Studios: Studio Gokumi
Source: Light novel
Genres: DramaDrama, FantasyFantasy
Theme: Mahou ShoujoMahou Shoujo
Duration: 48 min.
Rating: PG-13 - Teens 13 or older


Score: 8.001 (scored by 54265,426 users)
1 indicates a weighted score.
Ranked: #6292
2 based on the top anime page. Please note that 'Not yet aired' and 'R18+' titles are excluded.
Popularity: #5434
Members: 14,844
Favorites: 41

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Ranked #629Popularity #5434Members 14,844
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Episodes: /1


The third and final movie in the Washio Sumi no Shou trilogy.


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Related Anime

Characters & Voice Actors

Yuuki, Yuuna

Terui, Haruka


Satou, Rina


Kishi, Seiji
Hanazawa, Kana
Theme Song Performance
Mimori, Suzuko
Theme Song Performance
Nakamura, Kanata
Theme Song Lyrics


Opening Theme

Apple Music
Amazon Music
Youtube Music
"Sakiwafu Hana (サキワフハナ)" by Suzuko Mimori

Ending Theme

"Yakusoku (やくそく)" by Sumi Washio (Suzuko Mimori), Sonoko Nogi (Kana Hanazawa)


Jul 15, 2017
There is something about the Yuuki Yuuna franchise that makes me love it so much, and it's how it makes me love the characters and connect with them to the point where any scene, be either the fun interactions or the heartbreaking sad moments, makes me feel like I'm there, connected with them.

This final entry of the Washio Sumi trilogy proved that again with the end of this prequel. Following the events from the second movies, it provides the final hit in the feels to the viewers before leading to the events of the main series.

As a source reader I have to say that this ...
Jul 16, 2017
(Almost no spoilers at all) When I saw last October on the news, that Washio Sumi wa Yuusha de Aru was getting an anime adaption, I thought that I'd give it a 10/10 and it'd be my fav series of all time however they adapted it, and whatever happened so I'm truly biased here. But after I watched it, I think it doesn't matter if I were biased or not, if I hated the LN or not, I'd still love this no matter what.

Story (9) : Cute girls (yup we've seen that a lot), that ends in tragedy (we've seen that a lot too), but ...
May 18, 2018
(The rating is primarily for the trilogy)

Film 3 needed to do 3 things: Glide down from the emotional high of film 2's climax, build up to the climax of the Washio Sumi arc, and connect to Yuuna's arc. Content-wise, this is possible in one TV episode, but that would be quite fast, even for a YuYuYu episode.

So after the introductory scene, we have a few more side stories interspersed with a buildup involving the Heroes' parents and teacher over the introduction of the Hero System that would be used in the first TV series. I quite like this build-up, as it demonstrates that while the ...

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