Small independent bookstores tucked away in walk-up tenement buildings above neon-lit streets have long made Mong Kok a sanctuary for Hong Kong book lovers, until recently when one after another was forced to close due to economic headwinds or political uncertainty. Defying the trend, 41-year-old bibliophile Grace Lau invested a six-figure sum to launch New Year Bookshop, a move driven by passion and lower rents that some in the community regarded as a bold gamble on the neighbourhood’s literary...