ikuhashi muiko, shinjo takeshi, chaos;child, science adventure, 1boy, black hair, clothes grab, collared shirt, dress shirt, formal clothes, grey background, greyscale, hair between eyes, jacket, long sleeves, looking at another, male focus, monochrome, multiple boys, necktie, necktie grab, neckwear grab, shirt, short hair, simple background, solo, suit, undressing another, upper body, white shirt, yaoi