Chairoikoguma is a recurring character in the Rilakkuma franchise, especially in Rilakkuma and Kaoru. He is a small brown bear cub known for his gentle, shy, and somewhat mysterious personality. He often appears as a friend and companion figure within the story, adding warmth and charm to the group dynamic. His design emphasizes cuteness and softness, and he plays a supporting role that helps highlight the cozy, whimsical tone of the series.