A high-quality anime illustration featuring a slender 14-year-old boy with a delicate build, captured in a medium shot from a slightly elevated angle as he sits on the floor with his legs stretched out. The boy has a bob cut of soft black hair with ends flipping outward and subtle pale yellow inner color; his eyes are tightly closed, and two small beauty marks sit side-by-side under his left eye. He wears a slightly worn, traditional Japanese jinbei (short-sleeved and short-legged yukata), his expression featuring a calm but cynical smile that hints at his sharp, caustic personality. He is positioned in the center of a room reminiscent of a Showa-era apartment complex (danchi), with dated wallpaper, tatami flooring, and vintage domestic props in the background. The lighting is soft and natural, filtering through a window to create a quiet, nostalgic atmosphere, with a color palette of muted earth tones and nostalgic teals, conveying a sense of intellectual isolation and serene detachment.