Across all continuities, Fu is a bespectacled, fearless youth who appears to have inherited his mother's scientific genius, and seeks to enact all kinds of experiments. He bears a thirst for knowledge and discovery and displays great enthusiasm when something exciting takes place, such as when the Universe Tree began to create a new universe or when Xeno Gogeta shattered through time itself. However, he tends to be careless with his experiments, which often cross the line regarding the laws of space-time, whether due to good or evil intentions.