Gema is a small, floating character resembling a yellow sphere with a simplistic face, appearing in the anime series "Di Gi Charat." Serving as the mascot and guardian for the main characters, especially Dejiko, Gema is often seen providing guidance and comic relief throughout the series. It frequently ends its sentences with the word "gema," adding to its quirky and memorable personality. Despite its small size and seemingly simple appearance, Gema plays an important role in supporting and assisting the characters in their various adventures and misadventures.