Washio Sumi's Hero Radio is the spin-off Web 4koma to promote both the light novel and movie version of Washio Sumi is a Hero. "Washio Sumi's Hero Radio" features Washio Sumi, Nogi Sonoko, and Minowa Gin.
It consists of 30 chapters and 9 bonus 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.


The first movie in the Washio Sumi no Shou trilogy.

The second movie in the Washio Sumi no Shou trilogy.

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

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