King Ida and Leon met at the police station after the outbreak of Resident Evil in raccoon city, claiming to be the girlfriends of a researcher of Umbrella Company. They came here to find a boyfriend who hasn't heard from him. Leon has just arrived at the raccoon city Police Department to prepare for his post, but all this happened shortly after he took office. Out of the duty of the police and the unique heroic feelings of Americans, he wanted to protect Ida in this dangerous place until she left raccoon city safely. On the way, they met with the obstruction of reptiles and tyrants. After surviving the crisis, they gradually developed a good impression similar to the suspension bridge effect. When they met the female researcher under the umbrella, the man was insane because of her husband's disappearance. As 1L said, Ida is an agent hired by Wesker to steal G virus here. Unfortunately, the female researcher asserted that they were not good people, but came to seize her husband's research results and shot and killed Ida. In the game Resident Evil 4, Leon accepted the task of the president and went to a remote village to find the president's daughter Alice. Of course, it is a happy ending. Leon, Ada and Alice formally recognize the triangular relationship.