eibon, senomiya misaki, yukifune airi, robotics;notes, science adventure, 2girls, antenna hair, black choker, breasts, choker, dress, frilled shirt, frills, greyscale, hat, holding, holding unworn clothes, holding unworn hat, light blush, long hair, looking at viewer, monochrome, multiple girls, off-shoulder shirt, off shoulder, puffy short sleeves, puffy sleeves, ribbon, shirt, short sleeves, simple background, sketch, small breasts, smile, snowflake pendant, sun hat, unworn hat, unworn headwear, upper body, white background