I've Fallen for You Episode 20

He Zhen goes to visit Tian San Qi's parents. Zhao Cuo goes investigate a case and to give Tian San Qi a present and she learns that he also knows the nursery song that belongs to her true love. He Zhen needs to kill Zhao Cuo, but doesn't because he cares about Tian San Qi. Wu Meng doesn't agree and decides to kill Zhao Cuo and Tian San Qi. Tian San Qi gets a letter to meet Zhao Cuo at the tree. Assassins appear and Tian San Qi recognizes the assassins from before. They are also puzzled about why the assassins are attacked them instead of He Zhen. Zhao Cuo's dad decides to resign and Tian San Qi suspects there's a hidden reason. (Source: jindreame at MyDramaList)