Summary of significant accounting policies (Tables)

12 Months Ended

Dec. 31, 2023

Accounting Policies [Abstract]

Exchange rate used for the translation

US$ to RMB	Period End		Average
December 31, 2023		7.10700		7.07165
December 31, 2022		6.96310		N/A

US$ to HKD	Period End		Average
December 31, 2023		7.81005		7.82918
December 31, 2022		7.81325		N/A

Schedule of property and equipment useful life

Leasehold improvements	2 years
Office furniture and equipment	3 years

Schedule of intangible assets

Intellectual Property License 5 years