What I saw from the artist's pixiv page is that this girl is in all of his post, being tagged "若ショー子" and Sekaiju no Meikyuu, and this pic is especially tagged R18G.
makkun said: What I saw from the artist's pixiv page is that this girl is in all of his post, being tagged "若ショー子" and Sekaiju no Meikyuu, and this pic is also tagged R18G.
Correct me if I'm wrong.
若ショー子 reads as "Young sho-girl". It's to refer to Shogun class available in EO3. And as an additional cameo, that girl on the monitor screen seems to be a Troubadour.