Before Desire used the magic, Rebirth, there was a being shaking in fear in his own Dungeon.
And that being was, of course, Fireboy.
He was in his own body now, and that was the fire that was floating up in the air.
Ever since he returned to his body, Fireboy didn't move at all.
He just erased his presence as much as possible and tried to make his flame as little as possible.
That was how scared Fireboy was.
'W-what the hell was that…' Fireboy thought.
He still couldn't believe what happened earlier with his little battle with Desire.
Although Fireboy was attracted to Desire because of his potential, Fireboy knew that Desire isn't that powerful.
Hell, Fireboy could even kill Desire as much as he wanted to when they were together.
That was why Fireboy was even more confused about what happened.