Hougong Jiu Jiao Gei Fanpai Nüpei

Lin Ci transmigrated into the otome mobile game she created and became the villainess. To go back to the real world, she has to avoid the harem ending and make sure the heroine, Rutas, end up with one love interest. Otherwise, Lin Ci would be killed according to the plot. To survive, Lin Ci must seduce the other men away from the heroine one by one, while trying to make a living making table games!

(Source: Tencent, translated)