I've reincarnated into the evil character, but somehow I've healed them?

Bernald Tanzanite suddenly remembered he was in an otome game. He was the secret hidden evil character, who plotted to destroy the whole kingdom. This game, Magic Kingdom: Light~ was about a commoner heroine, and her school romance with high spec ikemen.

Bernald was the Butler of the villainous rival, and had no intention to interfere with the main story.

"I have a nice employer, a good wage, and stable life."

"But who is this heroine?! Aren't you supposed be the healing type?! Don't you dare hurt my friends, cheat heroine!!!"