Dantian Expansion

'Very troublesome.'

Although he was absorbed in the process of the breakthrough, Leo couldn't help frowning inwardly. The energy spiraling into his Dantian was supposed to be a rare opportunity to naturally increase his Internal Energy, but it was regrettably leaking away as soon as it made it there…

Through the use of his 'mental energy', Leo was still able to temporarily keep it contained in his body. However, this kind of natural energy couldn't stay for as long as pill energy did. If not stored in the Dantian, it would naturally disperse away!

This ordeal was something that had already been troubling Leo for a while. His Dantian was ironically… full.