K9 Cop [HK-Drama] (2016)

CID officer Lai Yat-tsau (Bosco Wong) parents died early, leaving him to take care of his three younger sisters. First younger sister Lai Suk-chu (Kayi Cheung) is a prestigious kindergarten school superintendent who is kind but gullible. Middle younger sister Jil Lai Suk-si (Tracy Chu) is a luxury brand salesperson. She is immature and money hungry. She originally dated Yat-tsau’s partner Fai Chung-lim (Raymond Wong) because he is a rich restaurant heir, but after years of dating she really fell-in-love with him and wants him to quit the police force because of the dangers that comes with the job, also for him to return to being a rich heir. Youngest sister Fanny Lai Suk-fan (Angel Chiang) is rude and lazy, who refuses to find a job. She is also the only one in the family that is married. Her husband Ma Chi-chung (Oscar Leung) works at the Agriculture, Fisheries and Conservation Department, but his attitude is very similar to his wife and often mooches off of his in-laws.