| Schedule of financial information for the VIE before eliminating the inter-company balances and transactions between the VIE and its subsidiaries, the subsidiaries of the VIE and other entities within the Group |
| | | | | | | | | As of December 31, | | | 2023 | | 2024 | | 2024 | | | RMB | | RMB | | US$ | Total assets | | 213,209,549 | | 217,009,461 | | 29,730,173 | Total liabilities | | 143,750,305 | | 124,142,846 | | 17,007,500 |
| | | | | | | | | | | For the years ended December 31, | | | 2022 | | 2023 | | 2024 | | 2024 | | | RMB | | RMB | | RMB | | US$ | Total revenues | | 103,631,702 | | 131,868,973 | | 121,108,780 | | 16,591,835 | Net income | | 33,595,051 | | 23,398,906 | | 22,921,391 | | 3,140,218 |
| | | | | | | | | | | For the years ended December 31, | | | 2022 | | 2023 | | 2024 | | 2024 | | | RMB | | RMB | | RMB | | US$ | Net cash generated from operating activities | | 25,650,939 | | 49,705,625 | | 15,819,139 | | 2,167,213 | Net cash used in investing activities | | (43,513,150) | | (43,637,362) | | (36,090,803) | | (4,944,420) | Net cash generated from financing activities | | 16,710,269 | | 3,390,438 | | 20,020,807 | | 2,742,839 | Net (decrease)/increase in cash, cash equivalents and restricted cash | | (1,151,942) | | 9,458,701 | | (250,857) | | (34,368) |
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