the same year, Tsui was also cast in Giddens Ko film, A Choo, alongside Ariel Lin and Kai Ko. In 2015, Kate was cast in the thriller film, Knock Knock, Who's There?. The film is the first directorial effort by veteran actress, Carrie Ng. Tsui said that upon receiving the script, she had intended to reject the role because of the frightening content. However, Tsui eventually agreed to the role due to Ng's persistence and persuasion. With reference to collaborating with Kate, Ng said that Tsui is a very professional and admirable actress. Jewelry design career In December 2015, Kate launched a fine jewelry line with K.S. Sze & Sons Ltd. Her debut collection, "Rabbit-Duck Illusion", was a success. She indicated that her designs are inspired by Ludwig Wittgenstein's concept on seeing with different perceptions, using the ambiguous image of a "duckrabbit". She spoke of the concept behind her jewelry designs, "It's something that I like to remind myself of, that there are many situations in life that aren't worth splitting hairs over, and if I simply adjust the angle that I'm viewing things from, I can easily see a different perspective." In early 2016, Kate founded her own fine jewelry brand and online shop; katetsui.com Further education Between the years of 2015–2016, Kate completed her Jewelry Design course at GIA and Colored Gem Professional Level II at the Gübelin Academy. In June 2019, Kate received her master's degree in Psychology at the University of Hong Kong. She had plans to further her studies overseas and pursue a Ph.D. in psychology and Philosophy. Filmography Films Television Awards 2016 The most promising new entrepreneur of the year - katetsui.com 2015 Jade Solid Gold Music Awards Presentation 2014 – Song Award: 棋逢敵手 (with Hubert Wu) 2014 StarHub TVB Awards 2014 – My Top 6 Favourite Female TV Character Award (Bounty Lady) StarHub TVB Awards 2014 – Everlasting Glow Award Jade Solid Gold Second Round Music Awards 2014 – Song Award: 棋逢敵手 (with Hubert Wu) 2013 StarHub TVB Awards 2013– My Top 6 Favourite Female TV Character Award (Highs and Lows) StarHub TVB Awards 2013 – Most Glamorous Female Artist Award Next TV Awards 2013 – Top 10 Artist (No. 10) 2012 TVB 45th Anniversary Awards 2012 – My Favourite Female Character Award (Highs and Lows) StarHub TVB Awards 2012 – My Top 6 Favourite Female TV Character Award (Lives of Omission) StarHub