If 'Ghost Fighter' is a unique story, Raizen might be a protagonist. He could be a character who has a natural affinity for dealing with ghosts. Maybe he has some sort of inherited ability or was trained in special arts that make him effective against ghosts. He might also have a personal vendetta against certain ghosts, perhaps because they have caused harm to his family or friends in the past. This would drive him to be a 'ghost fighter' and seek out and battle these supernatural entities.
The 'Fighter' movie tells the tale of a struggling boxer's journey to overcome odds and achieve success in the ring. It's full of determination and challenges.
Sure was. 'The Fighter' is based on the true experiences of professional boxers and their struggles. It provides a fairly accurate portrayal of their lives and careers in the ring.