Accounts Receivable, Net - Schedule of Accounts Receivable, Net (Details)	Sep. 30, 2025 HKD ($)	Sep. 30, 2025 USD ($)	Sep. 30, 2024 HKD ($)
Schedule of Accounts Receivable, Net [Abstract]
Accounts receivable	$ 2,040,552	$ 262,251	$ 1,387,862
Less: allowance for credit loss	(965,612)	(124,100)	(113,362)
Accounts receivable, net	$ 1,074,940	$ 138,151	$ 1,274,500

Amount, before allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481990/310-10-45-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(3)(a)(1))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483467/210-10-45-1

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant