ryoan (voyagehermitage), koakuma, touhou, absurdres, highres, 1girl, :/, black skirt, black vest, book, breasts, buttons, closed mouth, collared shirt, demon girl, dress shirt, eyelashes, gradient background, holding, holding book, limited palette, long hair, long sleeves, looking at viewer, red background, red hair, shirt, simple background, skirt, skirt set, small breasts, solo, vest, white shirt