re:zero kara hajimeru isekai seikatsu, rem (re:zero), re-vivi, pixiv id 14407259, simple background, 1girl, beach umbrella, bikini, black bikini, black swimsuit, blue eyes, blue hair, blush, breasts, detached collar, detached sleeves, female, hair ornament, hair ribbon, headdress, kittipat jituatakul, looking at viewer, maid bikini, medium breasts, navel, puffy detached sleeves, puffy sleeves, ribbon, short hair, side-tie bikini, solo, swimsuit, thigh strap, tray, umbrella, x hair ornament