Character Relationship Map: The Secret Code

Characters

• Cheung Oi-Lan (played by Ting Ying) — protagonist

  The daughter of code expert Cheung Yuet-Ting, Oi-Lan takes over her father's instrumental role in the Mafia after his death. Her pursuit of his hidden cache draws both the Mafia and the Celestial Devi...

• Chan Yu-Lam (played by Cheung Yee) — supporting

  Oi-Lan's close friend, Chan re-emerges after years away as a Mafia member and offers her protection and help in recovering her late father's cache. He is also an undercover police officer. As he assis...

• Lau Kei-Fung (played by Ling Mung) — supporting

  An underling of Mo Fu, Lau Kei-Fung is assigned to infiltrate the Cheung household by playing a confidence game. His task is to prevent Oi-Lan from reaching the classified information in her late fath...

• Cheung Yuet-Ting (played by Wong Kung-Miu) — minor

  Cheung Yuet-Ting is a code expert whose household becomes the target of Mo Fu's attempt to obtain the Mafia's secret intelligence. He is Oi-Lan's father, and after his death she succeeds to his instru...

Canonical Relationships

Family, romantic, and professional connections based on plot evidence.

• Cheung Oi-Lan → Chan Yu-Lam (Romantic Close Friend Turned Love Interest) — Chan returns to Oi-Lan's life, helps her seek her father's cache, and grows close to her while concealing that he is an undercover police officer.

  The synopsis calls Chan Oi-Lan's bosom friend and says he gains her trust and affection while protecting and assisting her.

• Cheung Oi-Lan → Cheung Yuet-Ting (Family Daughter) — After her father's death, Oi-Lan pursues the cache he left behind and succeeds to his instrumental role in the Mafia.

  The synopsis identifies Oi-Lan as Cheung Yuet-Ting's daughter and says she takes over his role after his death.

Story Dynamics

Alliances, conflicts, and narrative interactions that evolve throughout the story.

• Lau Kei-Fung → Chan Yu-Lam (Conflict Abduction Adversaries) — Lau's assigned operation puts him in direct opposition to Chan, who is protecting and assisting Oi-Lan.

  Lau is tasked with abducting both Oi-Lan and Chan before the Mafia can reach the key witness.

• Lau Kei-Fung → Cheung Oi-Lan (Conflict Captor And Adversary) — Lau infiltrates the Cheung household through a confidence game and works against Oi-Lan's attempt to recover her father's cache.

  Lau is assigned to stop Oi-Lan from accessing the classified information and to abduct her before the Mafia can reach the key witness.

Story Analysis

After her father is killed and the Mafia is framed, Oi-Lan pursues his cache amid a gang conflict, while her returning friend Chan secretly works undercover.

Plot Progression

1. The Stolen Intelligence — The Celestial Devil Gang targets Cheung Yuet-Ting's household for Mafia intelligence. Cheung is killed and the Mafia is framed, leaving his daughter Oi-Lan to take over his role.
2. A Daughter Pursues the Cache — Oi-Lan seeks the cache left by her father, drawing both gangs into a dangerous chase. Her friend Chan returns after years away as a Mafia member and offers to help protect her.
3. The Household Infiltration — Lau is assigned to infiltrate the Cheung household through a confidence game. He must keep Oi-Lan from the classified information and abduct her and Chan before the Mafia reaches the key witness.
4. The Apartment Raid — Police act on a tip-off and raid the apartment, arresting members of both gangs. The synopsis also identifies Chan as an undercover police officer who has gained Oi-Lan's trust and affection.