indou hikaru, tsujinaka yoshiki, hikaru ga shinda natsu, commentary request, highres, 2boys, 8d summer, air bubble, black hair, black pants, bubble, collared shirt, covered eyes, grey eyes, hand on another's head, looking at another, looking to the side, male focus, multiple boys, one eye closed, open mouth, pants, shirt, short sleeves, teeth, tile wall, tiles, underwater, water, watermark, white hair, white shirt, wing collar