- The members of the organization include stubborn and paranoid HONG YU-FUNG (Linda Chung), zealous optimist SZE YIK-HIM (Jason Chan), glib-tongued SIN KIT-CHING (Cilla Kung) and computer expert YEUNG TSZ-KEI (Calvin Chan). Led by their rational and self-possession team leader LO MAN-TIK (Chiang Chi Kwong), the four members unfold arduous journeys of handling tracing cases one after another. While striving to retrieve the happiness for the others, they also experience a process of self-evaluation all over again. As an apprentice, YU-FUNG cooperates well with YIK-HIM. Though constantly meeting with a rebuff, they come to realize that they should adhere to the principles of professional ethics when providing tracing services. Nor should they hastily offer any false hope to the enquirers, rendering any unnecessary sorrow on them. During that time, YU-FUNG starts having feelings for YIK-HIM. However, for fear that YIK-HIM has already a girlfriend - TING FAN-CHI (Lin Xia Wei), she could only dedicate herself to placing hopes on bringing more blessings to the others.
Chiang Chi Kwong
Lin Xia Wei