Return of the Runebound Professor - Chapter 667: Bixx

I became the Heavenly Demon’s dog.

Everyone said that Yi Qing was the number one Sword Cultivator in the world, with a swordsmanship and cultivation that no one could surpass. Whether it was when he was cultivating in the Lower Realm, or when he was in the Ten Heavens of the Upper Realm, he has always been undefeated.

Yi Qing laughed and said: “That is because you do not know of my Master. If we speak of cultivation, I am not as good as she by a long mile. Thinking about it, at the start, out of the ten Heavenly Emperors of the Upper Realm, my Master beat up nine, and the one left was myself.”

“Master? You actually have a Master! Who? How come we never heard of it?”

“My Master is…. Eh? Master? Master! And my Master? Has anyone seen my Master?”

A person next to them quietly raised her paw. “I am here!”

- Description from Novelupdates

This legend tells the tale of the protagonist, Kuroki summoned to protect the demon king from the hero.

Kuroki, unbeknownst to him, suddenly came to another world. He was summoned by the demon king, Modes. The territory which the demon king overrules was in the midst of being destroyed because of the hero. He had no choice but to bow before Kuroki.

“Please save us, Savior Dono!”

Kuroki nodded, deciding to save the demon king due to an unexpected turn of event.

Dreams are… a reality that only those who are capable can speak about.This was an era marked by the births of geniuses!This was an era where heroes could be found everywhere!The fierce conflict between the aristocrats and the civilians, the open and veiled battles between the Federation and the Empire, the restlessly lurking extraterrestrials…When the principles of truth were within the range of battleship cannons, when order had no place in this world… Mu Fan, with the mysterious intelligent life “Black” and his unwavering will, fiercely tore open the magnificent Great Galaxy Era!