There's something wrong with my world

It all started when Siwei got the "reasonable story derivation device".The so-called "reasonable story derivation device" is able to organically combine the novel and reality. The protagonist of the novel will stay in Siwei's house as a cousin, so that Siwei can watch the story that happened in Two-dimensional in three dimensions. By the way, A BUG that can participate in unreasonable changes in the plot.The high technology is beautiful, but this broken machine is a domestic counterfeit product, you can’t stop it when you open it (every day when you wake up, you can see your cousin changing his personality and playing split personality or something...), and he loves to modify the watch without authorization in a more reasonable name. Brother's attributes are weak and subject to strong attack, trembling M to trembling S, man-wife becomes ghost and animal, it's enough!Siwei said, I entered a few novels into it at the beginning, hero, please let me go.../(ㄒoㄒ)/~~ Content label: Traveling through time and space. Protagonist: Siwei Supporting role: Jing Xiaoyu, Jing Cheng, Jing Yuan (actually they are one person...) Others: This is a world of mix and match