that's in rock (Bessatsu Comic Unreal Sekka END ~Zetsubou no Naka de Sekizou e to Kaerareru Shoujo-tachi~ Vol. 1)
Eris Sensei no Gakkyuu Houkai | Eris Sensei's Classrom Breakdown (2D Comic Magazine - Monster Musume ga Tsudou Ishuzoku Gakuen e Youkoso! Vol. 1)
ERONA Orc no Inmon ni Okasareta Onna Kishi no Matsuro | Erona ~The Fall of a Beautiful Knight Cursed with the Lewd Mark of an Orc~ Ch. 1-3
