Roy felt that the information he learned from Julia was very precious!
In fact, although Roy had promoted to high-rank demon, he was a little confused about his future path. He knew that above high-rank demon was demon lord and demon king, but he did not know how to improve further.
He knew that he needed more 'cannon fodder' if he wanted to become stronger, but the frost demon bloodline only gave him a single elemental power. Perhaps if he continued to focus on this path, he would also be able to attain great achievements, but who knew how long it would take.
Thinking about how he might need thousands of years, turning into a very old demon, before he became a demon lord and demon king made Roy feel unbearable.