Two young men decorate a Christmas tree together in a romantic scene. The first is a dangerously charming, mature Chinese man (36 years old), long grayish-black hair swept back, sharp red eyes, confident smile, wearing a slightly relaxed version of a luxury black tuxedo jacket, with an open-collar black silk shirt underneath, muscular physique subtly visible, elegant yet sensual. He gently leans toward and embraces the other man from behind, guiding his hands as they hang ornaments together, holding a Christmas ornament instead of a rose. The second is a delicate and refined young Japanese man, short soft black hair parted slightly to the side, pale skin, calm thoughtful expression with a hint of flustered surprise, wearing a thin black knit with subtle texture, casual yet sophisticated, clean and minimalist. They stand close together beside a glowing Christmas tree, soft warm lights, red ribbons, gold ornaments, white garlands, gentle lighting, festive atmosphere, subtle sparkle effects, anime-style, high-definition, ultra-detailed fabric and realistic folds, clean line art, romantic but classy mood, not exaggerated, no over-decoration around them.