Xu Jingwen is transmigrated to South Korea, where he immediately has to kill his own twin brother who was plotting to murder him. Taking advantage of their identical looks, he assumes his deceased brother’s identity, taking over his position as a prosecutor, his house, and even his fiancée. Having stolen this new life, he decides to be a “good person” and eradicate all corrupt officials and criminals. However, on his first day of work, he discovers that the corrupt official is… himself.