The story of four adventurers, all whom have experienced betrayal and hardship, banding together to give the middle finger to society.
Ningen Fushin no Boukenshatachi ga Sekai o Sukuu Youdesu
Adventurers Who Don’t Believe in Humanity Will Save The World. You should give them a visit if you’re looking for similar novels to read. Alternatively, you can also
create your own list.