Supported by many organisations in the localist camp and boosted by the Mong Kok civil unrest, Hong Kong Indigenous's Edward Leung received 15% of the votes.

Despite failure in winning a seat, its better-than-expected results encouraged the localist camp to actively field candidate to contest the general election in September.

On 29 February 2016, the day after the by-election, Civic Passion (CP), Proletariat Political Institute (PPI) and Hong Kong Resurgence Order (HKRO) jointly announced they would form an alliance to contest all of the 5 geographical constituencies.

Instead of striving for independence from China, they advocated a constitutional reform by all citizens through a de facto referendum, in the form of a by-election triggered by one legislator resigning from each of the five geographical constituencies.

Cheng Chung-tai was elected to represent New Territories West with a 9.03% support, while incumbent legislator Wong Yuk-man suffered a narrow defeat of 424 votes to Yau Wai-ching of Youngspiration (ALLinHK).