Du You slowly dissipates the aura, unable to hide the joy on his face.
Aura Skill was unlike other skills, it was a one-time consumption skill. Though consuming quite a bit of power when activating the Aura Skill, it was one-time only. Once activated, there was no need to keep consuming power to maintain it.
If he was willing, he could ensure that the aura was always present around him, never to disappear.
Of course, no one would do that, because while maintaining an aura, a special area would form around oneself, where the power would change and repel external forces, easily detectable by others.
If someone discovered that he is using an aura, it could be misinterpreted as an intention to attack.
Moreover, no one wants other people's power endlessly swirling around them. It might be fine in a fight, but maintaining an aura otherwise would be annoying.
Besides, with Du You's magic power, the release of a mere aura didn't consume much at all.