I Was Reincarnated as a Villainous Noble Who Gets Killed Midway Through the Story but It Looks Like

The Protagonist at the Front Gate, the Family at the Back Gate
One day, the protagonist is reincarnated as Rex, a villainous noble. In the original story, he was a character who would eventually be killed. To avoid this fatal future, he plans to do good deeds, but Rex’s family is a group that kills traitors. In other words, siding with justice is difficult. Caught in this dilemma, Rex continues to struggle.