1girl, bikini, black_bikini, black_horns, blue_sky, braid, breasts, closed_mouth, day, eyewear_on_head, grey-framed_eyewear, hair_intakes, horns, kounagi39, large_breasts, navel, oni, oni_horns, outdoors, parasol, pink_eyes, purple_hair, rimuru_tempest, rimuru_tempest_(slime), sarong, sash, shiny_skin, shion_(tensei_shitara_slime_datta_ken), short_hair, sidelocks, single_horn, sitting, sky, slime_(creature), slit_pupils, smile, solo, summer, sunglasses, sunlight, swimsuit, tensei_shitara_slime_datta_ken, umbrella