that's in rock (Bessatsu Comic Unreal Sekka END ~Zetsubou no Naka de Sekizou e to Kaerareru Shoujo-tachi~ Vol. 1)
Dungeon Travelers Chie no Himegoto 2 | Dungeon Travelers Chie's Secret 2 (ToHeart2 Dungeon Travelers)
HYBREED ~Shinkai Tsuki Kanmusu Shussan Kiroku~ | HYBREED ~Abyss-Touched Shipgirl Birthing Record~ (Kantai Collection -KanColle-)