Investment Income - Schedule of investment income (Details)	12 Months Ended
Dec. 31, 2025 HKD ($)	Dec. 31, 2025 USD ($)	Dec. 31, 2024 HKD ($)	Dec. 31, 2023 HKD ($)
Other Income and Expenses [Abstract]
Option premium income	$ 4,407,000	$ 566,212	$ 0	$ 0
Realized gain on disposal of digital assets	873,409	112,216	0	0
Investment income from stable coins and digital assets	1,680,869	215,958	0	0
Change in fair value of derivative liabilities	(2,795,520)	(359,169)	0	0
Change in fair value of stable coins, digital assets and digital assets – restricted	121,190,685	15,570,604	0	0
Others	(1,383,004)	(177,689)	0	0
Total investment gain (losses), net	$ 123,973,439	$ 15,928,132	$ 0	$ 0

Crypto Asset, Investment Income, Nonoperating

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- Definition

Gain (Loss) On Investments, Including Changes In Fair Value Of Assets And Liabilities, Net

+ References

No definition available.

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- Definition

Amount of realized gain (loss) from remeasurement of crypto asset, classified as nonoperating. Excludes crypto asset held for platform user.

+ References

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-Topic 350
-SubTopic 60
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
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Amount of unrealized gain (loss) from remeasurement of crypto asset, classified as nonoperating. Excludes crypto asset held for platform user.

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- Definition

Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

+ References

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-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
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Amount of realized and unrealized gain (loss) on investment.

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Amount after accretion (amortization) of discount (premium), and investment expense, of interest income and dividend income on nonoperating securities.

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