“We got a little bit sidetracked… Okay, anyway, the main point is that mana can be anything, but it takes time. This is the absolute proposition. But you have to know that time is relative,” Reable said.

“So you’re saying complicated things take longer time and simple things take less time, right?”

“Bingo! So with that in mind, something like this is possible.”

Reable wrapped his hands with the power he called Spectral Mana. It looked like black mist. As he waved his hand, one of his Undead subordinates approached, pulled out a bone knife, and swung it in the air.

Cling!

“It’s very simple. You infuse mana into your body to strengthen it. Its efficiency is lower than magic or Arcane Circles, but it has the advantage of being quick. So this happens if you apply it.”

Tssssss.

The black energy was absorbed into Reable’s entire body. Then, his body turned completely black. His pure white skin completely changed into something that could only be called ‘Vantablack.’ This ominous black color was difficult to describe as just black—he looked as if he were a human-shaped hole in the air. He was darkness itself.

“If you hone your use of Mana, you can become like this. I call this state Mana Body,” Reable said.

‘That… that...