Read Tenshoku No Shinden O Hirakimashita manga
What was born as a villager, no matter how much effort, remains a villager and never becomes a swordsman. This is the world where everyone’s life has been determined by the innate “job”. And a young man was summoned to this different world with a certain ability. The ability of the main character, Kaname Morimoto, was able to brilliantly “ change jobs ” = job change ability!!