A luxurious black satin sleepwear set featuring a short-sleeve open-front shirt with deep V-neckline and front button closure, paired with matching high-waisted shorts. The fabric exhibits a smooth, lustrous sheen characteristic of high-quality satin or silk-blend material, offering elegant drape and soft comfort against the skin. Designed with a relaxed yet refined silhouette, the shirt includes functional chest pockets and slightly oversized sleeves for effortless lounging. The shorts sit at the natural waist with clean lines and subtle side slits for ease of movement. Inspired by Japanese 'boyfriend shirt' styling (as indicated by the Japanese text '男友の衬衫'), this set blends intimate apparel functionality with fashion-forward minimalism. Ideal for nighttime relaxation, hotel stays, or as chic loungewear for at-home elegance. The cohesive black colorway ensures timeless versatility, while the lightweight construction suits warm seasons. No visible branding or logos present—product appears to be from an independent or private-label designer.