Qian Nian, who was a little over 2 years old, met Gu Shen, who was 5 years old, and saved her when she was being bullied. Qian Nian's family is a single-parent family. Her mother said that Qian Nian's father would come back if he found a four-leaf clover. Unexpectedly, Qian Nian actually found a four-leaf clover in the lawn under the park. This article is also known as "The Promise of Four-leaf Clover"
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