War of Resistance: Starting with Unlimited Silver Dollars, I Can Buy Nuclear Bombs

System + single heroine + decisive and ruthless + farming + fighting the Japanese + smart protagonist + cooperation without blind trust Wang Yang transmigrates to 1937 and binds himself to a bounty System. At last, he sees red. Bandit chief: "Hero, I've never done anything evil. Just look at my eyes. Aren't they clear and honest?" Wang Yang: "You've got a bit of red over your head." Militia commander: "Sir, I've never bullied the locals. Just look at all this meat on me. Isn't it adorable?" Wang Yang: "You've got a bit of red over your head." Collaborator translator: "Hero, I'm really not a traitor. Look at how well I translate!" Wang Yang: "You've got a bit of red over your head." Puppet soldier: "Officer, I just want to survive. Look at the times we live in. It's a mess!" Wang Yang: "You've got a bit of red over your head." Japanese soldier: "Spare me! Killing me won't do you any good. I'm just a nobody, and my words don't count!" Wang Yang: "All right, I'll send you straight back to your granny's house." (This is a fictional world. Don't take it as a reference to real people or events.)