| Schedule of contract with customer liability third parties |
| | | | | | | | | | | | June 30, | | June 30, | | June 30, | | | 2025 | | 2026 | | 2026 | Third Parties | | RMB | | RMB | | US Dollars | Contract liability | | ¥ | 4,719,255 | | ¥ | 1,669,736 | | $ | 246,089 | Total | | ¥ | 4,719,255 | | ¥ | 1,669,736 | | $ | 246,089 |
| | | | | | | | | | | | June 30, | | June 30, | | June 30, | | | 2025 | | 2026 | | 2026 | Third Parties | | RMB | | RMB | | US Dollars | Balance at beginning of the period | | ¥ | 1,820,481 | | ¥ | 4,719,255 | | $ | 695,532 | Decrease in contract liabilities as a result of recognizing revenue during the year was included in the contract liabilities at the beginning of the year | | | 761,824 | | | 3,634,649 | | | 535,681 | Increase in contract liabilities as a result of billings in advance of performance obligation under contracts | | | 3,660,598 | | | 585,130 | | | 86,238 | Total | | ¥ | 4,719,255 | | ¥ | 1,669,736 | | $ | 246,089 |
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| Schedule of contract with customer liability related parties |
| | | | | | | | | | | | June 30, | | June 30, | | June 30, | | | 2025 | | 2026 | | 2026 | Related Parties | | RMB | | RMB | | US Dollars | Contract liability from unconsolidated entities | | ¥ | — | | ¥ | 400,000 | | $ | 58,953 | Total | | ¥ | — | | ¥ | 400,000 | | $ | 58,953 |
| | | | | | | | | | | | June 30, | | June 30, | | June 30, | | | 2025 | | 2026 | | 2026 | Related Parties | | RMB | | RMB | | US Dollars | Balance at beginning of the period | | ¥ | — | | ¥ | — | | $ | — | Increase in contract liabilities as a result of billings in advance of performance obligation under contracts | | | — | | | 400,000 | | | 58,953 | Total | | ¥ | — | | ¥ | 400,000 | | $ | 58,953 |
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