Cover of Gunjou no Magmel Vol. 1 Gunjou no Magmel (群青のマグメル, Gunjō no Magumeru; lit. meaning "Ultramarine Magmel") is a manga written by Dainenbyō. It was first released on 19 June, 2015. Categories: Manga Media Add category Cancel Save Community content is available under CC-BY-SA unless otherwise noted.