A System for Two: How I Traveled to Different Worlds with a Dragon
Leon is a bored and unhappy college student who gets a chance to escape his mundane life when he receives a mysterious system that allows him to travel to different worlds based on genres of novels. He can choose from fantasy, sci-fi, horror, romance, mystery, and action. Each world has its own rules, challenges, rewards, and dangers. He can only stay in each world for one chapter, and whatever he does in each world will affect his original world as well. Along the way, he meets various characters and creatures, some friendly and some hostile. He also encounters a red dragon who wants his system and makes him an offer he can't refuse.