Shadow on the Moon

Anyone who could construct a stable Spell Model could become a Wizard — that was the Wizards' ultimate secret! Having been given a new life as the son of an aristocrat and armed with a super quantum computer from his past life, Spell Models game as easily as breathing to Merlin. With this overwhelmingly huge advantage, would Merlin become the greatest Grand Wizard of all time?

EndlessFantasy Translation 

A Wizard's Secret

J_Squared

"He's too powerful. I'm afraid only Sir Veron will be able to defeat him!"

The three Sanctuary Contenders looked at one another. They had all become Merlin's prisoners and had no way to escape.

"You're all my prisoners now. Anyway, I don't intend to kill you. The reason I came here is to obtain an item left behind by a supreme existence."

The three Sanctuary Contenders glanced at one another. Then, one of the Sanctuary Contenders spoke up uncertainly, "What is the name of that supreme existence?"

Merlin thought about it. Aruba was not a secret. Not only did he create this world, but they had also named a city after him. That was Ruba City, the ground upon which they were standing on at the moment.

So, he replied calmly, "That supreme existence calls himself Aruba!"

Ruba’s Monument I