On July 1, 2020, the UK announced the expansion of rights for BNO passport holders, arguing that the Hong Kong National Security Law is a “clear and serious” violation of the Sino-British Joint Declaration. For Hongkongers born before 1997, the BNO now offers a new "escape" route. What can the BNO inform us about the formation of Hongkonger identities and the geohistorical entanglements between Hong Kong, the UK, and China?