Haruka, who always spent his high school life "alone", was suddenly summoned to a different world with his classmates one day. When Haruka came to his senses, the god was right in front of him, and asked him to choose his favorite skill from a list of various cheat abilities in order to survive in the different world. He didn't expect that the first-choose-first-win game was that the cheat skills had been taken by his classmates! ? Haruka only got the remaining subtle skills, and because of the effect of the skill "marginal man", he couldn't form a team, and even in the different world he could only adventure alone. At this time, he learned that his classmates were in danger, and quietly decided to rescue them, and move towards the strongest path of the heretic who does not rely on cheats but surpasses cheats. The story of the strongest marginal man's strategy for the different world begins!