Mass Production Type Tool Maker

Crematorium type article, maybe a bit sadistic? There is a type of story where the time traveler plays the role of a cannon fodder and scumbag. After scumming the protagonist, he retreats. As a result, the scumbag protagonist quits, turns black, and annihilates the world. The Time Travel Department cannot ask the time traveler to return to save the darkened protagonist. However... If a successful time traveler boss retires and then re-employs him, the salary he has to pay is too high. In order to reduce costs and increase efficiency, the Traversing Division had to find another way - the mass-produced attack tool maker came into being. * 'Gentle and docile' is written in Yuqi's underlying code. Every time his boyfriend calls him by the wrong name, he smiles and nods in agreement. Moreover, Yu Qi will automatically rationalize the name her boyfriend calls out: "Xiao Yi". The two characters "Yu Qi" just spell out to be Yi. * Her boyfriend is young, handsome and wealthy, and Yuqi is a model. Although her abilities are mediocre, she still works hard to earn money to support her family. Saying good morning and good night to each other, and falling asleep in each other's arms, Yuqi thought that he and her boyfriend were very much in love. So he secretly saved up money to buy an engagement ring, hid it in his pocket, and prepared to propose to her boyfriend. * Not long after, Yu Qi's disgraceful tactics for gaining power were anonymously exposed, and black material spread everywhere. He lost his job, was spurned by the people around him, and returned home with his head hanging down. There was a light on at the entrance, and her boyfriend was standing by the door, with someone behind him. A person who looks exactly like Yuqi. * Yu Qi was stunned for a while, and suddenly realized that he was a mass-produced attack tool produced by the Time Travel Division, and was a replica of the original slag attack. He came to this world to accept the revenge of the darkened protagonist, and to tolerate and influence the protagonist with bottomless love. After the mission is completed, the Time Travel Department will send a real scumbag to come and hire a real scumbag at a low salary to accompany the protagonist for the rest of his life. * Zhen Zhan Gong is a refined version of Yu Qi, and Yu Qi's appearance is 70% like him, so he is really a very suitable fake. According to the regulations of the Time Travel Department, after the arrival of the real scumbag, Yu Qi's face in the protagonist's memory will be replaced by the real scumbag. * Yuqi smiled and explained to the protagonist and the real scumbag that he was lost. Yuqi turned around and went downstairs with a smile. When he walked out of the gate of the community, he was actually at a loss. The reward given by the Travel Division for completing the mission is freedom. Yuqi didn't know where she was going, or where she could go. * Yuqi found a job serving dishes and met the protagonist by chance. He stepped forward to deliver the menu, and the protagonist turned to look at him suspiciously: "Xiao Yi?" Yuqi smiled and got out of the way, revealing the real scumbag Gong Yuyi behind him. Purpose: Happiness is the most important thing