rumia, touhou, commentary, 1girl, anime coloring, bikini, black bikini, blush, breasts, chirisazame1, cleavage, dated, from below, groin, hair intakes, hair ribbon, looking at viewer, navel, open mouth, outline, outstretched arms, red background, red eyes, red ribbon, ribbon, short hair, side-tie bikini bottom, simple background, small breasts, solo, swimsuit, teeth, upper teeth only, white outline