Two girls, Ying Yue and Xin Yue, were born in the moonlight.Born in Darong Village of the Mainland. Ying Yue had never seen his father from childhood.When she was young, her mum went to Hong Kong and she was entrusted to her seventh grandaunt. However, other children in the village always made fun of her. Until one day, she found she started to enjoy running... Xin Yue was born in a rich family. Being cared and favored by grandfather and dad from childhood, she is impulsive and overbearing and she also hates strict restrictions imposed by her mum on her. Until one day ... Ying Yue moved to Hong Kong and met Xin Yue.Both of them had a indistinct feeling about Xiao Yiwei, a male student in the class... What impact does running have on Ying Yue?Can Xin Yue understand the restrictions imposed by her mum on her?Can Ying Yue and Xin Yue"e; turn the enemy into friend"e;?