In 2045, the scarlet virus broke out and the world became a zombie purgatory. Chu Fei, a scavenger, was bound to the "Negative Emotion Collection System". He could obtain emotional points by triggering the negative emotions (anger, fear, despair, etc.) Of others (survivors, villains, evolved zombies), and exchange them for weapons, medicines, base modules, abilities, etc. Chu Fei started out as a gangster who was robbing supplies with a vicious tongue. He used the cycle of "making trouble = collecting emotions = becoming stronger" to gradually build a base, fight against the zombie wave, annex the greedy forces, and reveal the truth about the virus (an experimental product of a multinational company). In the process, he used his venomous tongue to make the villains jump, stimulated the fear of evolved zombies, and even collected the negative emotions of all mankind to exchange them for the ultimate weapon. He eventually became the overlord of the apocalypse, eliminated the source of the virus, and rebuilt human civilization. The core of Shuangdian is the high-frequency feedback of "active provocation = instant strength", combined with the ultimate conflict of the jungle in the last days.
