Read manga: Hitsugi Katsugi No Kuro. - Kaichu Tabi No Wa

manga
Summary:

From Yen Press:Kuro, a little tomboy garbed in pitch-black with a little-tomboy-sized coffin on her back, heads out on a journey to find a certain witch. In the company of her faithful bat friend, Sen, Kuro encounters all manners of people and places which fire the readers’ imaginations.