nikun (sisee456), ganyu (genshin impact), genshin impact, mihoyo, 1girl, arm at side, ass, bikini, black bikini, blue hair, breasts, butt crack, collarbone, day, feet out of frame, female focus, flat ass, from above, from behind, from side, halterneck, hand on own chest, happy, horns, large breasts, long hair, looking at viewer, looking to the side, looking up, low ponytail, outdoors, petals, ponytail, purple eyes, side-tie bikini bottom, solo, standing, swimsuit, twisted torso, water