Prepaid Expenses and Other Current Assets, Net (Tables)

12 Months Ended

Dec. 31, 2025

Prepaid Expenses and Other Current Assets, Net [Abstract]

Schedule of Prepaid Expenses and Other Current Assets

Prepaid expenses and other current assets and allowance for credit losses consist of the following:

	As of December 31,
	2024			2025			2025
	RMB			RMB			US$
VAT recoverable		15,134			9,740			1,356
Prepaid expense		5,607			4641			698
Investment buyback receivable (1)		30,000			30,000			4,290
Loans receivable (2)		21,700			18,335			2,622
Other receivables		2,309			7,226			1,036
Total		74,750			69,942			10,002
Less: allowance for credit losses		(46,335	)		(46,335	)		(6,626	)
Prepaid expenses and other current assets, net		28,415			23,607			3,376

(1) The Company invested RMB30,000 in Yieryi for its 12% equity interest on August 17, 2021. As part of the Framework Agreement signed on December 29, 2021, one of the shareholders of Yieryi bought such equity interest back from the Company for RMB30,000. On August 25, 2023, such shareholder and his related party pledged their ownership of 1.3 million ordinary shares of the Company to ensure the recoverability of the receivable balance. On March 22, 2024, such shareholder and his related party further pledged their ownership of 2,969,114 ordinary shares of the Company to ensure the recoverability of the receivable balance. The Company made full allowance of RMB30,000 in the year ended December 31, 2024, due to uncertainty of collectability.

(2) The balance represents amount lent to several third parties with various interest rate for working capital purpose.   The Company made an allowance of RMB16,335 in the year ended December 31, 2023, due to uncertainly collectability.

Schedule of Allowance for Credit Losses

An analysis of the allowance for credit losses is as follows:

	For the years ended December 31,
	2023		2024		2025		2025
	RMB		RMB		RMB		US$
Balance, beginning of year		-		16,335		46,335		6,626
Additions		16,335		30,000		-		-
Balance, end of year		16,335		46,335		46,335		6,626