1girl, ahoge, blue_hair, blush, breasts, collarbone, ganyu_(genshin_impact), genshin_impact, hakamaboooots, hand_on_own_forehead, horns, long_hair, looking_at_viewer, lying, medium_breasts, navel, on_back, parted_lips, partially_submerged, purple_eyes, sidelocks, solo, swimsuit, vision_(genshin_impact)