A 2014 light novel written by Takahiro and illustrated by [[BUNBUN]]. A part of the [[Yuusha de Aru]] franchise, it takes place 2 years before the events of [[Yuuki Yuuna wa Yuusha de Aru]]. It received an anime adaptation as part of the second season of [[Yuuki Yuuna wa Yuusha de Aru]] in 2017.

h4. Characters

h6. Main
* [[Washio Sumi]]
* [[Minowa Gin]]
* [[Nogi Sonoko]]

h6. Other
* [[Shinju (yuyuyu)|Shinju]]
* [[Minowa Kintarou]]

h4. See also

* [[Shinju-kan uniform]]
* [[Shinju-kan gym uniform]]

h4. External links

* "YuYuYu Wiki: Washio Sumi is a Hero":[https://yuyuyu.fandom.com/wiki/Washio_Sumi_is_a_Hero]
鷲尾須美は勇者である