asagiri gen, ishigami senkuu, dr. stone, highres, 2boys, bag, closed eyes, collared shirt, crossed arms, facial mark, greyscale, head on another's shoulder, hood, hood down, hoodie, leaning on person, long sleeves, male focus, manspreading, monochrome, multiple boys, open mouth, pants, parted lips, school bag, school uniform, shirt, shoes, short hair, sitting, sketch, sleeping, sleeping upright, smile, snowapple fen, spiked hair, window