| Cyber Security & Technology Crime Bureau Senior Inspector Szeto Chung is a mentor to and also a friend of Inspector Siu Mei-ting. They have unraveled all kinds of phone, online and tech scams. While Szeto Chung is investigating an online dating case, he runs into his ex-girlfriend Cheung Wai again. |
| Name | Character | Episodes |
|---|---|---|
| David Chiang Da-Wei | Sze To Cham | 25 |
| Samantha Ko | Cheung Wai (Vincy) | 25 |