Hiro thought about the issue for half a day and eventually, he couldn't come to a conclusion.
To get his mind off the recent troubles, Hiro got up from the cracked ground and decided to roam the Decay Canyon, killing monsters and absorbing their demonic energy.
However, since Hiro couldn't upgrade his 'bloodline' as a demon, he decided to increase the quality of the demonic energy he absorbed instead.
It was easy to apply by using his gluttony physique, sensing the demonic energy, and extracting pure demonic essence from the demonic energy for his training.
The downside was that his progress in leveling up slowed down considerably.
However, after thinking back to the choices between short-term and long-term returns, Hiro still decided to seek for long-term improvements when it came to his personal strength.