Ye Chen was once the legendary "Chen Emperor" in the online game "God's Domain". After his wife passed away three years ago, he quit the e-sports circle and raised his four-year-old daughter Nuan Nuan alone. He is a gentle dad during the day, and plays games live to earn money for milk powder at night. His life is ordinary. Until he accidentally awakens the "Memory Switch" system, which allows him to randomly exchange parts of his memories with others. In an encounter at the playground, he exchanged memories with Shen Yi, a wealthy upstart in the city. In that dark memory, Shen Yi stared at Nuan Nuan's photo with a sick smile. It turns out that this gentle and elegant young master has long been mentally distorted and regards Nuan Nuan as the next "perfect collection". What shocked Ye Chen even more was that his wife's car accident was not an accident, but was caused by Shen Yi's silence. The grief and anger completely ignited Dad's anger. Using the exchanged memories, he had foresight: in the game competition, he reappeared as Emperor Chen and crushed Shen Yi's team into pieces; in reality, he intercepted every dirty plot in advance and forced Shen Yi into a desperate situation. When Shen Yi thought he had a chance to win, Ye Chen played the evidence extracted from his memory in front of everyone, and the whole network went crazy. The psychologically twisted villain completely collapsed under the blows that were revealed in advance one after another. When dad is angry, he goes to heaven and hell. Let's see how a game master brings a cute baby to use memory exchange to torture the twisted villain until he goes crazy!