Dark Old Demon

Roy's life was nothing special. The only thing commendable was the last few moments when he saved a mother and her child from a drunk driver.
...
It's really an egg! Damn it, what kind of monster have I become? Did I fall into Hell instead of making it to Heaven??
Join Roy as he ventures through various worlds with the Custom Made Demon King System—a system that allows Roy to draw anything he can imagine and create it through exchanging souls!

Custom Made Demon King

After realizing that there was no longer that terrifying ultra-low temperature around Roy, Julia quickly flew down, and Cassandra and Benia followed closely behind.

"Darling, are you all right?" Julia asked in concern while supporting Roy.

"I'm fine. My magic power is already starting to recover!" Roy stood up and sighed.

"What happened just now?" Julia asked curiously. "I know you're experimenting with your frost power, but why did you turn black for a moment? Like… like all the colors on your body turned into deep darkness…"

"Huh? Really?" Roy was stunned when he heard this question.

Of course, he could not see his state just now, so he felt puzzled. But Julia and the others saw it, and even Benia and the rest nodded to confirm Julia's words.

"Turned black?" Roy was puzzled. Did that explosive increase of 100,000 points of magic power allow me to enter the absolute zero state? Or else why would such a phenomenon appear?

Condensate, Marching Toward Eeofol