Kuma Yamada is a supporting character in the anime series 'Marie & Gali'. He is a friendly, anthropomorphic teddy bear who acts as a companion to the main characters, especially Marika. Kuma provides comic relief throughout the series with his cute appearance and gentle personality, often helping to explain scientific concepts in a simple way. His presence adds warmth and humor to the show, and he assists Marika and her friends as they navigate the whimsical world of Gali.