Naming
"Your Companions? Like him? I think not!" the Azure Wyrm said, but his expression changed when a System notification appeared in front of all four Magical Beasts at the same time, the aura of a powerful being forcing them to avert their eyes for a moment.
They read the notification carefully, switching from surprise to disbelief to suspicion and eventually to hope as they realized the powerful being's offer wasn't simply an empty promise. The aura of the contract itself suggested that there were well-concealed lies and there wasn't any additional fine print.
All they had to do was serve William for the rest of their lives, and their previously stagnant condition could possibly be elevated to the next Realm in the future. For a Magical Beast at the peak of the World and just one step shy of Ascension, this was a huge opportunity!