Income Taxes (Details)	6 Months Ended	12 Months Ended
Sep. 30, 2025 USD ($)	Sep. 30, 2025 CNY (¥)	Sep. 30, 2024 CNY (¥)	Mar. 31, 2025 USD ($)	Mar. 31, 2025 CNY (¥)	Mar. 31, 2024 CNY (¥)
Income Tax Disclosure [Abstract]
Current income tax expense	$ 5,568	¥ 39,640	¥ 0	$ 0	¥ 0	¥ 0
Deferred income tax expense	(288,774)	(2,055,783)	0	0	0	0
Total income tax expenses	$ (283,206)	¥ (2,016,143)	¥ 0	$ 0	¥ 0	¥ 0

Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
-Subparagraph (b)
-SubTopic 10
-Topic 230
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-28

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480738/235-10-S50-1

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(h)(1)(Note 1))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 9
-Subparagraph (b)
-SubTopic 10
-Topic 740
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-9

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration