A brief description of the Chillin Different World Life Of The EX-Brave Candidate Was Cheat From Lv2 manga:
Banaza was called to the magical kingdom of Cryroad as a contender for the title of hero. After a while, the young man was put to rest, as he looked like the most ordinary citizen. He wanted to go back to the normal, unremarkable world, but he had to live in a new world because of the mistakes of the heads of state. He has changed his name and decides to spend his life on the most pleasant things. One day, exploring the new world, the main character kills mucus and gets the rank of “2”. The hero decides to check how his characteristics have changed with the new level. After opening the appropriate menu, the hero becomes numb with surprise: now there is a sign “∞” in front of each value. This means that it’s time for a relaxed life and an amazing adventure!