Twins from the 1970s, if you disagree, I'll slap you.

Lu Ye and Chen Dachuan, who fought their way up from an orphanage to become the two giants of a listed group, fell victim to a poisoned needle at a victory banquet. When they opened their eyes again, they found themselves reborn in a dilapidated mud-brick house in 1976. The [Dual Rebirth System] was successfully bound. [Congratulations on obtaining the title 'Big Slap Immortal,' granting you the ability to hit your target with a 100% success rate!] Lu Ye's gaze was deep: "Fatty, it seems this time our path to wealth will begin with 'persuasion through reason.'" Chen Dachuan cracked his knuckles, grinning: "Old Lu, I told you, if you can use your fists, don't talk!" If you can solve it with your fists, it's no big deal! Thus, the 1970s gradually took a turn for the worse. Those who steal food? A slap sends them flying three meters! Those who trip you up? A double slap leaves them swollen like pigs! Those who cut off your livelihood? A series of slaps will teach them a lesson! One is the mastermind behind the scenes, calculating precisely; the other is the one who takes action on the front lines, specializing in dealing with those who dare to defy him. All the discontent eventually covered their faces and understood: these two kids are slapping gods descended to earth! ... With system assistance, slaps are just a means to an end; the ultimate goal is a comeback. A blend of period drama and fast-paced action, it has both tear-jerking and exhilarating moments. Explosive pacing and frequent face-slapping moments, it's the perfect cure for all kinds of frustration. Return to 1976, slap away all the discontent, and protect the warmth of humanity. Keywords: Double rebirth, slap-based comeback, period business warfare, satisfying revenge, brotherhood.