In a word, no. But from your other posts you seem to be resident in HK already, and my guess is that is on a Dependant Visa. If you have such a visa (unless you are dependant on someone who has a Study Visa) then you may work freely without any further Immigration paperwork.
If the work you are considering just involves you doing it then there's no need to go to the trouble of a limited company - you could register as a sole proprietor business and then just declare your business income on your individual tax return. Business registration fees are waived at the moment so there is no major cost to doing this.
EDIT - looking further it seems that you are planning your wedding, so in fact you may not be legally resident here at all yet. In that case, if you want to start work urgently my advice would be to do the legal marriage straightaway to get the Dependant Visa. The celebrations later in the year are just the same except that the legal bit is redundant because you'd have already done it.