My story is sci-fi. I've been brainstorming of a couple of plot twist or the 'hidden skeleton'. I'm trying to make both the protagonist and antagonist on a personal connection level. The MC wakes up in the future, and before that he has a older brother that was apparently killed early in the story. His older brother is an role model that he looks up to for guidance through out the story to get by. In the course of events he fights the bad guy who tries to stop his goals, and believes he killed his older brother. In the end; revealed the bad guy he fights the whole time is his actual older brother that used him for his sinister ambitious goals. Of course this rips apart the MC feeling betrayed by his own blood, but a person who once looked up to. Thing is what bothers me about this plot twist don't want it to be a knock off of starwars plot twist of vader being lukes father. I could have a other twist of a twist. Where MC actually had twin brothers, with one that was separated at birth, and MC didn't know about. One was good, and other well- evil. Would like your thoughts on this.