The Quickness Of A Wolf
For the first time since he was reincarnated into this world as Aaron Winters, the Demon King was sensing the nostalgic energy from the realm he once ruled over from a being other than his elite female warriors. Because of this, Aaron's interest in the fiend had been piqued and he wanted to question him to at least research him to understand how it was able to come to this world all on its own.
Of course, Aaron had his suspects — the Heavenly Realm. Without a doubt, they were the number one culprits on his list as to why this fiend was here in the Human Realm and if what he read in the file which Nyx had given him, along with things he had heard so far about otherworldly monsters disturbing the peace of mankind, was true, then he couldn't brush off his suspicion as something trivial.