🇺🇸 United States · English ← Edition home
100 Days of Deception | Netflix

The Cake Assassin Twist That Completely Changed the Power Balance

Für Leser in Deutschland & Europa

Author: Shivam Das · Independent coverage. Corrections / Contact

Promotional still for 100 Days of Deception showing Kim You-jung and Park Jin-young in period costumes
Promotional still for 100 Days of Deception showing Kim You-jung and Park Jin-young in period costumes

By Shivam Das | Updated October 13, 2026

Spoilers for the opening episode and Episode 2.

The cake delivery looks ordinary—until it becomes one of the most dangerous moments in 100 Days of Deception. The disguised deliveryman is not there to serve dessert. He arrives with an assassination agenda, takes Lee Ga-kyeong hostage, and forces interpreter Sato Hideo to make decisions before he understands who is standing in front of him.

The sequence disrupts the balance of power among the central players. Yoo So-ran and Yoo Philip’s plan to kill Sato Shinichi is thrown off course by an outsider whose identity and motives are unclear. Soompi’s episode preview confirms the cake-delivery disguise, the hostage situation, and Ga-kyeong’s warning to Hideo.

Kim You-jung as Lee Ga-kyeong surrounded by uniformed officers in 100 Days of Deception
Lee Ga-kyeong is caught in a crisis that quickly draws police attention. Image: tvN still via Soompi.

Why the cake disguise works

A deliveryman is easy to overlook. In a formal household, a cake can pass through doors that would stop a stranger carrying a weapon. The disguise exploits the trust built into routine: people watch the guests and political hierarchy, not necessarily the person bringing a package inside.

The show uses this everyday detail to make its espionage feel immediate. The danger does not arrive with a public declaration. It enters under the cover of a service task, then exposes how little anyone in the room truly controls.

Park Jin-young as Sato Hideo standing in a broken doorway in 100 Days of Deception
Hideo’s position as interpreter does not protect him from sudden physical danger. Image: tvN still via Soompi.

Ga-kyeong changes the scene by recognizing the threat

Ga-kyeong is not simply a helpless bystander. When the assassin takes her hostage, she quietly identifies him to Hideo in English. That small act changes the information available to Hideo. She cannot safely explain everything, but she gives him enough to question the scene in front of him.

This is a defining strength of the character: her survival depends on observation, timing and knowing when to reveal only part of what she knows. Her pickpocketing skills may have brought her into this dangerous circle, but her ability to read people helps her navigate it.

Kim You-jung as Lee Ga-kyeong crouched on the ground after escaping danger
After the immediate danger, Ga-kyeong is left to absorb the shock of what happened. Image: tvN still via Soompi.

Hideo loses the comfort of certainty

Hideo’s reaction is shaped by suspicion. He already has reason to question Ga-kyeong: the pickpocket who stole his wallet has appeared again as a live-in maid in a house connected to his father. The assassin incident adds another layer of uncertainty. Is Ga-kyeong a victim caught in the wrong place, a person who knows more than she admits, or someone whose goals overlap with the people trying to kill Shinichi?

The most interesting consequence is not that Hideo suddenly knows the truth. He does not. Instead, he has to act while his information is incomplete. That uncertainty gives their relationship its tension: he needs to assess her, while she needs to survive his scrutiny.

Park Jin-young as Sato Hideo speaking with Lee Ga-kyeong in a dark outdoor setting
Hideo and Ga-kyeong’s uneasy exchanges turn suspicion into a continuing source of suspense. Image: tvN still via Soompi.

The assassination plan is no longer under one person’s control

Before the disguised assassin appears, So-ran and Philip’s plan is already dangerous: they are targeting Shinichi, a powerful official whose position gives him protection and influence. The cake delivery adds a separate agenda to the same space. Suddenly, multiple people are pursuing different outcomes, and each person has only a partial view of the others’ intentions.

That is the real power shift. The people who prepared the original plan no longer control the timing or the risks. Ga-kyeong’s presence links the competing agendas, while Hideo’s family connection makes the incident personal as well as political. The scene turns a planned assassination into a wider web of suspicion.

Lee Ga-kyeong and Sato Hideo facing one another in a tense nighttime scene
The uneasy space between Ga-kyeong and Hideo reflects the drama’s larger struggle over trust and hidden loyalties. Image: tvN still via Soompi.

What the twist signals for the story ahead

The cake assassin is effective because the character does not need to dominate the story for long. The attack exposes vulnerabilities that remain after the immediate confrontation: the household is not secure, Hideo cannot rely on appearances, and Ga-kyeong’s knowledge makes her both useful and suspicious to those around her.

It also establishes the drama’s central rule: every identity may be a cover, and every ordinary interaction can conceal a second purpose. In a period spy romance set during Japanese-occupied Korea, information, family ties and a person’s ability to pass unnoticed can be as consequential as weapons.

Quick answer: Why is the cake assassin twist important?

The disguised cake deliveryman derails So-ran and Philip’s assassination plan, takes Ga-kyeong hostage, and forces Hideo to respond before he understands everyone’s motives. The incident shifts control away from the original planners and binds Ga-kyeong and Hideo more tightly through suspicion.

Frequently asked questions

Who is the cake assassin in 100 Days of Deception?

The opening episode introduces a mysterious man disguised as a cake delivery person who has his own assassination agenda. The cited preview does not name him, so his identity should not be stated as confirmed without further episode evidence.

Who is taken hostage?

Lee Ga-kyeong is taken hostage by the disguised assassin. She quietly signals the man’s identity to Sato Hideo in English.

Whose assassination plan is disrupted?

Yoo So-ran and Yoo Philip are plotting to assassinate Sato Shinichi when Ga-kyeong’s unexpected arrival and the disguised assassin complicate their plan.

Why does Hideo distrust Ga-kyeong?

Hideo recognizes her as the pickpocket who stole his wallet and is suspicious when she later appears as a live-in maid in a house connected to his father.

Where can viewers watch the drama?

The series is listed on Netflix’s official title page. Availability can vary by region.

Join the episode discussion

This Reddit thread contains viewer discussion, not official production statements.

100 Days of Deception Episodes 1 & 2 discussion

Sources and further reading

Image note: The five episode stills above are from the Soompi preview of tvN’s drama. Confirm permission to reuse or hotlink these images before relying on them commercially.

Back to top