Mystery Gift Misunderstanding - 15s 3D Comedy Animation

Create a 15-second hilarious cinematic 3D animated comedy with an original warm, polished, high-end cartoon visual style. Use consistent character designs throughout: an overly confident young man and his clever older sister inside a stylish modern apartment. Warm golden lighting, expressive exaggerated facial reactions, smooth animation, cinematic camera work, and fast comedic timing. Scene 1 - 0–3 sec: The young man is relaxing on the sofa, playing a video game. Suddenly, he notices his sister secretly carrying a large beautifully wrapped gift box into the next room. A shiny ribbon falls to the floor. He pauses the game and slowly turns toward the door with wide, suspiciously excited eyes. He immediately assumes the surprise gift must be for him. Scene 2 - 3–6 sec: He jumps up in excitement and begins dramatically practicing his surprised reaction in front of a mirror. He fixes his hair, straightens his shirt, places his hands on his cheeks, and rehearses an exaggerated shocked expression. Then he confidently gives himself a proud smile, convinced everyone is about to celebrate him. Scene 3 - 6–9 sec: He slowly walks toward the room and opens the door with maximum drama, pretending to be casually surprised. He throws his arms open as if expecting everyone to shout, "Surprise!" His excited expression suddenly freezes when the room is completely silent. Scene 4 - 9–12 sec: Reveal the truth: his sister is standing beside the giant gift box, struggling to pack dozens of his old, messy belongings into it. She has actually bought the box to organize and move his clutter out of the living room. She looks at him and smiles innocently. Scene 5 - 12–15 sec: Before he can react, she rapidly hands him more and more junk to pack - old shoes, tangled headphones, game controllers, clothes, and random items. The box becomes absurdly huge. The young man ends up trapped inside the oversized gift box with only his confused head sticking out. His sister happily closes the lid halfway and pushes the box across the room while he stares at the camera with a defeated expression. Comedy style: fast misunderstanding setup, exaggerated confidence, dramatic anticipation, unexpected reveal, escalating visual chaos, expressive facial animation, smooth comedic timing, cinematic close-ups, warm stylish interior, and a strong visual punchline at the end. Keep all characters and environments visually consistent throughout the full 15 seconds.