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Prepaid Expenses and Other Current Assets, Net (Details) - Schedule of allowance of doubtful accounts
12 Months Ended
Dec. 31, 2022
CNY (¥)
Dec. 31, 2022
USD ($)
Dec. 31, 2021
CNY (¥)
Dec. 31, 2022
USD ($)
Schedule of Allowance of Doubtful Accounts [Abstract]        
Beginning balance ¥ 4,744,565 $ 681,240 ¥ 4,744,728  
Addition 237,704 34,130  
Reverse   (163)
Write off (4,744,565) (681,240)  
Ending balance ¥ 237,704 $ 34,130 ¥ 4,744,565