Roy realized this issue for the first time as well. His Demon Bloodline was already quite mixed; if he continued adding more bloodline traits to himself, would conflicts arise between them?
The T-Virus was manageable. Its main function was to strengthen his cells, so it did not really count as a bloodline. But if he truly wanted an immortal body, it would definitely involve bloodline modification.
Roy felt that he needed to get to the bottom of it.
The fastest way was naturally to ask the system directly. However, the system's answer told Roy that adverse consequences were indeed possible!
Roy's profile clearly listed his attribute as [Dark], the fundamental attribute shared by all demons. This meant that any modification to Roy's bloodline could not, at the very least, conflict with this dark attribute! It was not as though creating an angel bloodline potion would truly turn Roy into an angel...
Of course, a Fallen Angel bloodline could probably work, but there was no need for it. In essence, Fallen Angels were not much different from demons.
The system's answer served as a warning to Roy. It seems that anything involving bloodline modification had to be handled with caution.
With that, the third option—an immortal body—was temporarily ruled out. Although Roy wanted an immortal body badly, he felt he might be able to approach it from other angles. As for directly modifying himself into an immortal-body bloodline, he would set that aside for now.
With one option eliminated, only the first and second remained. Creating a holy armor set for himself to enhance his defenses was feasible, and Roy had considered it before. But what if other demons became greedy? Such obviously well-crafted treasure armor would definitely attract the covetous eyes of many powerful beings. That was a hidden danger.