Scott Wants to Be a Lone Wolf Among Lone Wolves

[Star Railway + Single Male Protagonist + Villain] He reported his biological father, but his father toasted him in prison: "Well done, son!" He was jealous of his brother's position and immediately used a strategy to assign him to a frontier position, while he could sit back and enjoy the benefits with peace of mind. Scott - a man who has "climb up" engraved in his bones and has no bottom line in his actions, but has an almost paranoid loyalty to his strange set of principles. You lose a bet and bark like a dog in public? He screamed louder than anyone else! Despicableness is his badge, principles are his shackles. Welcome to witness this story of a lone wolf who does whatever it takes to achieve his goals, but "does what he says" in some strange places.