SZE KA-KA (Linda Chung) becomes disobedient since her mother passed away at her young age. KA desperately searches for her mother's cremains which she has no idea why they have gone missing. Eventually, she is able to find the cremains in SHING KAM-SHEK's (Cheng Jut Si) stone factory. KA's love to her mother impresses SHEK and his disciple SHING YAT-ON (Steven Ma) a lot. ON helps KA to solve many of her problems, he also finds her a job in his sister SHING MEI-SUM's (Fala Chen) company. KA appreciates all the things ON has done for her. Clearly, they adore one another, but they do not confess their love for each other because they both were afraid of being heartbroken and would rather keep their brother-sister relationship instead. The love chance comes eventually when SHEK is staying in the hospital for heart surgery. SHEK has KA become ON's trainer for the marathon. ON reunites with his old running partner who KA thinks is ON's true love. ON places third in the race (placing for his first time). ON's running partner places first in the woman's division and her and ON hug and take photos which make KA jealous and she tries to leave obviously hurt and crying. ON chases KA and admits that he doesn't want to think of KA as a younger sister but he actually loves her. KA starts to cry and yells at ON for not admitting his love for her. ON stops her yelling by kissing KA. The whole family later finds out when ON announces that him and KA were dating at ON's birthday party. SUM is a money-oriented woman who wants to marry a rich man. She involves herself in a threesome with SHEK's son KAM WING-LOI (Raymond Cho Wing Lim) and her boss TUNG KA-CHEUNG (Cheng Tse Sing). She gets pregnant accidentally. Later, she has an abortion because she does not want the baby to ruin her chance to getting rich. The family is bitterly disappointed in SUM. SUM does not repent what she has done. SUM injures KA whom is pregnant by drunk driving. ON loses his battle for life since then