Hubris looked at him stupidly, but didn't say anything.
"Must've imagined it. That was strange."
"Haha, it wasn't your imagination master. Thank you for working tirelessly to save me. From now on, I, Hubris, the King of the underworld will be at your service."
Hubris felt really grateful to Kiro. He saved his life after all, and the way he was concerned for him, and nursed him without rest, he was touched to the point he unconsciously accepted Kiro as his true master.
Gaining a Hellhound's loyalty to that extent was no joking matter, as they would even claw their intestines out if their master ordered them to.
"King of the what now?"
"Of the underworld, I was put here because there was a rebellion that took my father's life and because I was too young to rule, instead of being killed, I was banished here."
Kiro was astounded. Even mounts have backstories, just how thorough were the devs. He was fascinated by the backstory.