Professor Lucas Lepri demonstrates a Kimura submission from closed guard. He begins by explaining how to set up the Kimura by grabbing the opponent's wrist, going around their elbow, and securing his own wrist. He emphasizes that the hips should not be flat on the mat for this submission. Lepri details how to open the guard slightly, turn the hips to the side, and then re-lock the guard to gain leverage. He stresses the importance of driving the opponent's wrist towards their back and using the top arm to press the opponent's shoulder.