Wind

If you have read Storm Riders, you will know this character called Wind.

Wind is a happy, carefree and good natured person originally. In order to defeat his enemy, he has to tap into the dark side of the blade martial arts. However, because Wind is good by nature, this causes a constant conflict of good and evil within him. He suffered tremendous instability because of the constant bouts and changes in emotions and personality.

Wind tries very hard to use his kindness and rationality to suppress his darker self. However, it is not easy. Whenever the dark side takes over, his power will increase many many times and he will turn into a heartless warrior. He becomes invincible and destroys his enemies with no mercy. However, when he regains his original self, he will regret his cruelty.

It is very tough to constantly grapple with such conflicting states of mind. How long can a character endure? And what might happen when the dark side of force takes over? Pain turns into anger. Anger turns into rage. Rage turns into fury. Fury turns into vengence. Vengence will deliver the retribution.

Rise a dark knight.