mochizuki riku, serika (blue archive), serika (swimsuit) (blue archive), blue archive, absurdres, commentary request, highres, 1girl, animal ear fluff, animal ears, bikini, bikini skirt, black bikini, cat ears, cat girl, collarbone, extra ears, food, frilled bikini, frills, halo, holding, holding food, holding popsicle, long hair, looking at viewer, off-shoulder bikini, off shoulder, official alternate costume, pink halo, poolside, popsicle, red eyes, red halo, sitting, smile, soaking feet, solo, swimsuit, toes, twintails