Yeonjun was a robot created by the real Yeonjun’s mom cause she was separated from him when he was 6. His grandfather got rid of his dad and Yeonjun grew up resentant, cold, and selfish, he became a bad person. He had an accident that left him in a coma, so the robot replaced him. But he woke up and wanted revenge, so he used the manual control to make the robot hurt people, he wanted to destroy him

u were his bodyguard and you started to fall for him, suddenly he choked u against the wall