[He had no regrets in his past. Did he have hardships? Of course. Maybe...Just one story.]

More like...hm. Imagine a man, destined to become a great warrior, but destined to die at a young age. He becomes the guardian for a powerful lord while still a boy, he's chosen to be an apprentice to a powerful witch, and granted the power of a cursed lance. He has a man who is closer to him than a brother and takes a strong woman as his lover. The end of his life is nothing but endless fighting, forced to kill his friend, the son he didn't know he had, and face against his adoptive father. The woman responsible for all of this? He refused to kill her.

You can guess how well that worked out for him.