1boy, arknights, bangs, beret, bingansuan jiamouren, black choker, black headwear, blue flower, blue hair, choker, closed mouth, cup, drink, drinking straw, flower, hair between eyes, handheld game console, hat, holding, holding cup, iei, jacket, looking at viewer, male focus, mizuki (arknights), mizuki (summer feast) (arknights), official alternate costume, open clothes, open jacket, red eyes, red flower, shirt, short sleeves, smile, solo, tentacles, upper body, white flower, white jacket, white shirt, yellow flower