The instructor and mentor of the Year 298 team. Aki is strict and stern with her students but is not disliked. She does have a talent for scaring some students into submission. Underneath, she is kind and willing to help.

~!Following [Sonoko Nogi](https://anilist.co/character/88641/Sonoko-Nogi)'s Sange, she became a Taisha priestess. She was the priestess who instructed the Sentinels during the events of Kusunoki Mebuki is a Hero.!~

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

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__Non-anime roles:__
- Guilty - Goddess of Victory: Nikke (VG)
- Eula - Genshin Impact (VG)
- USS California - Azur Lane (VG)
- Caesar King - Zenless Zone Zero (VG)
- Helena Martin - Reverse Collapse: Code Name Bakery (VG)

In the year 298 from the era of the gods, elementary school girls Sumi Washio, Sonoko Nogi, and Gin Minowa are tasked with an important mission. They are to become heroes and fight Vertex, a mysterious enemy that is attacking Shinju-sama, the god tree that protects Shikoku, the only area in the world that is still habitable. What they don't know, is that this fight will cost them more than they could have ever imagined.


The second season of Yuuki Yuuna wa Yuusha de Aru. 
 
Having fulfilled their destiny during the events of Yuuki Yuuna wa Yuusha de Aru, Sanshu Middle School's Hero Club—consisting of Yuuna Yuuki, Karin Miyoshi, and siblings Fuu and Itsuki Inubouzaki—is back in full swing, helping out those in need wherever they can. They have also gained a new member, a hero from the past named Sonoko Nogi. But eventually they notice that someone who should be among them, Mimori Tougou, is missing; any trace of her existence is completely gone, save for the girls' memories. 
 
With no leads on Tougou's whereabouts, the girls regain the ability to transform and begin the desperate search for their lost friend. But what they find is more shocking than any of them could ever have imagined, and the consequences of their actions begin to change life as they know it. 
 
(Source: MAL Rewrite)

The first movie in the Washio Sumi no Shou trilogy.

The second movie in the Washio Sumi no Shou trilogy.

Kusunoki Mebuki was up to compete for the hero's position, but lost to Karin Miyoshi. This left a jealous stain on the girl. She was later summoned to Kagawa's Gold tower, where she was given a new duty as a sentinel, a soldier whose job is to stand by and keep watch. Now along with three other sentinels and a priestess, Mebuki will fight and protect her army, the current generation of heroes, and the rest of humanity from the creatures who hide behind the wall.
 
(Source: Yuki Yuna is a Hero Wikia)
 
Note: Includes 2 extra chapters.

In the year 298 from the era of the gods, elementary school girls Sumi Washio, Sonoko Nogi, and Gin Minowa are tasked with an important mission. They are to become heroes and fight Vertex, a mysterious enemy that is attacking Shinju-sama, the god tree that protects Shikoku, the only area in the world that is still habitable. What they don't know, is that this fight will cost them more than they could have ever imagined. 

Note: The second manga adaptation after the first was discontinued.

In the year 298 from the era of the gods, elementary school girls Sumi Washio, Sonoko Nogi, and Gin Minowa are tasked with an important mission. They are to become heroes and fight Vertex, a mysterious enemy that is attacking Shinju-sama, the god tree that protects Shikoku, the only area in the world that is still habitable. What they don't know, is that this fight will cost them more than they could have ever imagined. 

Note: The first of two manga adaptations, as this serialization was eventually cancelled.

The third season of Yuuki Yuuna wa Yuusha de Aru. 
 
The magical girls of the Sanshu Middle School Hero Club have one goal: to make people smile whenever they can and to always help those in need. Through teamwork and the help of their magical powers, Yuna, Mimori, Fuu, Itsuki, Karin and Sonoko have vanquished deadly Vertexes, recovered a missing friend and balanced their lives as magical girls and regular middle school students. Now a new adventure begins, one that will test their skills and their bond as friends alike. 
 
(Source: Sentai Filmworks)