L for Love, L for Lies

Kei Kei meets Bo and Jun after reconnecting as old classmates. She admires Jun's hard work and kind nature, deciding she wants him for herself despite knowing he's in a committed relationship with Bo. Kei Kei pays little attention to Bo's feelings and pursues her plan to steal Jun regardless of the emotional cost.

The reunion is framed as friendly, but Kei Kei's true intentions are revealed early when she observes Jun's character.

Kei Kei pursues Jun persistently, and her relentless attention eventually causes Jun to leave Bo. The exact methods aren't detailed, but her determination contrasts with Bo's more passive approach, leading Jun to choose Kei Kei over their long-term relationship.

Kei Kei's openly manipulative behavior is visible from her first reunion with Bo.

After Bo's boss Kuen's fiancée disappears with his life savings, Bo discovers that Keung, the former neighbor she had a crush on, is a conman. This gives her an idea: she hires Keung specifically because of his skills in deception, intending to use him to outwit Kei Kei and get revenge for the betrayal she suffered.

Bo's realization that Keung is a conman directly connects to her plan to use deception against Kei Kei.

Kei Kei falls for Keung's charm as part of his and Bo's plan, eventually abandoning him. Later, she steals all the money from Jun's shop and disappears, but this turns out to be part of Keung's orchestrated plan to deceive her in return. She faces consequences for her betrayals, though the full extent of her fate is left somewhat ambiguous.

Keung's conman skills were specifically enlisted to turn Kei Kei's own tactics against her.

Keung is beaten by his own thug companions after his plan to expose Kei Kei succeeds. He arrives badly injured near Bo and Jun's restaurant, trying to confess his love to Bo, but collapses on the street and dies from his wounds before she can fully reach him. His death is a tragic consequence of his dangerous deception games.

Keung's life as a conman involved dangerous associates, setting up his violent end.

After Kei Kei steals money from the shop and disappears, Jun realizes the truth about her character. He reconciles with Bo, and their relationship grows stronger as they weather the betrayal together and rebuild what was damaged. The shared experience of loss brings them closer.

Kei Kei's greed and betrayal are foreshadowed throughout her arc, making Jun's eventual return to Bo logical.

In the final scene, Bo meets Ah-Man in real life and discovers that Man's new boyfriend is Jun, the very man Bo once dated and lost to Kei Kei. This ironic twist reframes their reunion and leaves Bo processing the unexpected reality that her ex-boyfriend ended up with her close friend, creating a bittersweet conclusion.

The parallel relationship arcs between the two couples have been developing throughout the film.

Keung encounters his ex-girlfriend Yan, who reveals her family is moving to Singapore and discusses Keung's troubled history with money. In a vulnerable, drunken moment, Keung kisses Bo as she consoles him. This moment reignites the unresolved tension between them and complicates Bo's feelings as she remains involved with Keung's revenge plan.

Bo and Keung's past as former neighbors with an old crush foreshadows their emotional reconnection.

Keung is Bo's old neighbor from before, whom she once had a crush on. When Bo reconnects with him through her boss Kuen, she learns he is a conman who has deceived people, including his ex-girlfriend Yan, whom he nearly drained of money. Despite this troubled past, Keung agrees to help Bo with her revenge plan against Kei Kei.

Keung's conman identity is revealed when his thuggish associates appear after Kuen's stolen savings incident.