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Convertible notes payable (Details Narrative)
Aug. 07, 2023
CNY (¥)
Jul. 07, 2023
CNY (¥)
Dec. 31, 2023
USD ($)
shares
Aug. 07, 2023
USD ($)
Aug. 07, 2023
CNY (¥)
Jul. 07, 2023
USD ($)
Jul. 07, 2023
CNY (¥)
Convertible notes payable              
Principal amount of notes payable | $       $ 700,000   $ 325,000  
Common stock share issued | shares     535,653,360        
Principal amount of issued share | $     $ 600,000        
Notes balance | $     $ 1,400,000        
Consideration amount | ¥         ¥ 657,500,000,000   ¥ 300,000,000,000
Original issue discount | ¥         ¥ 32,500   ¥ 15,000
Investor legal fee | ¥ ¥ 10,000 ¥ 10,000          
Interest rate on notes 8.00% 8.00%