Is this manga or just ilustration? http://www.mangago.me/read-manga/ore_no_ushiro_ni_tatsu_na/mh/c005/3/
It's a manga i think, the art similar with Watanabe Asia works
Is this manga or just ilustration? http://www.mangago.me/read-manga/ore_no_ushiro_ni_tatsu_na/mh/c005/3/