It is Miriam Chin-Wah Yeung's return to the small screen with Hong Kong's TVB after a 17-year hiatus.
It eventually became the overall sixth most-watched drama series of 2019 in Hong Kong.
Kai-Kai always called Ho-Tin 'Oppa'. It is actually a Korean term, usually meaning an older brother, male friend (which both can refer to how Kai-Kai view Ho-Tin), and can also be used while flirting.
The Mandarin translation of the drama series actually literally translates to 'multi-functional wife', which is how Lam Fei has often being described.