After Sing Hei saved Hoi Man from falling off a tree, Hoi Man starts to have feelings for him. She talked about him a lot. Even Grandma noticed that and told her that she "fatt hao"!
Pui Ka met Sing Hei in the lift going up to Lap Yin's office. When exiting the lift, Pui Kai slipped on some water. Sing Hei wanted to help her up but is afraid that she might misunderstand, someone else came out from the lift and helped Pui Ka. It's good that Sing Hei didnt help Pui Ka as Lap Yin was observing Sing Hei from the CCTV.
Sing Hei tried to get close to his colleagues because he needs their help to get evidence. He also tried to get some gossip and news from them. He also learned that Kelly is the office know-it-all. She is also in-charge of the company accounts.
Lap Yin's company was appointed to investigate a claim in Cheung Zhao. Pui Ka knows about the case and is interested in it as a possible news item. She informed Lap Yin that she would want to tag along for the investigation. Lap Yin last minute couldn't attend because he has another more urgent case. Lap Yin assigned the case to Roy, but Roy's mother is sick so he re-assign the case to Sing Hei. Sing Hei met up with Pui Ka at the pier. Pui Ka still treats Sing Hei as a friend and told him not to be nervous.
After interviewing the victim, Sing Hei received a call from Roy. Roy told him that the victim make have faked his injuries and will likely go out later at night. Roy asked him to stay longer in Cheung Zhao and check. Due to this, Sing Hei and Pui Ka missed the last ferry back and had to stay a night in Cheung Zhao.
Sing Hei and Pui Ka decided to wait the night out at the beach. Pui Ka took a nap while Sing Hei run through some documents. Suddenly a gush of wind blew most of Sing Hei's documents into the sea. Pui Ka woke up and rushed to help him. They were both soaked from head to toe.
Sing Hei wanted to rent a holiday house for them to use for the night but there wasn't any available. The owner had only one room left. So Sing Hei let Pui Ka use the room and he went to the beach alone, as he wanted to avoid any misunderstanding.
Lap Yin was actually observing Pui Ka and Sing Hei from a far. He wanted to test if Sing Hei still has any feelings for Pui Ka and got Roy to help him. Fortunately, Sing Hei didn't do anything to Pui Ka that may caused any misunderstanding. Otherwise his efforts would have been wasted.
Back at the office, Lap Yin praised Sing Hei for handling the case well. Sing Hei passed the case file back to Roy, but Roy told him to put the file on his table. Two ferry tickets to Cheung Zhao, which were placed on his table, caught Sing Hei's attention. Now Sing Hei knows that the trip to Cheung Zhao was a test for him.
A developer, Mr Chao, is interested in buying Lap Yin's house. He asked Lap Yin to talk to Fei Ba abotu selling the house as the price is good. Grandma was against them selling the house, she is worried that after selling the house, Lap Yin will pocket all the money.
Pui Ka brought Grandma shopping in the area that they plan to buy their new house. Pui Ka was telling Grandma how good and convenient the new area is. Grandma can see through her ploy and told Pui Ka not to bother persuading her. Grandma then told Lap Yin and Pui Ka that she wants to go to the toilet, but she never came out. Pui Ka went inside the toilet to check and realised that Grandma is missing. Lap Yin called home to asked if Grandma had returned but she has not. Hoi Man decided to go and look for Grandma as well and called Sing Hei to accompany her. Thanks to Sing Hei's quick thinking, Hoi Man and Sing Hei managed to find Grandma and brought her home.