Human Vapor Ending Explained: Is Kyoko Alive or Dead?

Netflix’s ‘Human Vapor’ is a crime thriller with a twist of sci-fi, following the investigation into a series of murders by a mysterious entity made of smoke. The eight-episode series starts with a murder on live TV, which pushes a journalist and a detective with a complicated past to work together to get to the truth. As details about the victim come to light, it turns out that they are dealing with forces more powerful than the Human Vapor, and the true monsters have been hiding in plain sight all along. SPOILERS AHEAD.

Human Vapor Plot Synopsis

Kyoko Kono arrives late for an interview with a renowned professor, but it becomes the least of her concerns when the said professor is killed mid-interview on live TV. A mysterious trail of smoke takes over him and kills him by exploding his lungs, raining down blood on the entire set. Due to the nature and severity of the crime, the entire police force is under pressure to catch the culprit. With the all-hands-on-deck kind of situation, suspended detective Kenji Okamoto is brought back.

Apart from the mind-boggling crime, the tension between him and Kyoko, who were a couple only months ago, also becomes a concern. It turns out that the Human Vapor is targeting the people connected to the White Center. It is a government-backed organization established to help homeless people, especially children. But the more Kyoko and Kenji dig into it, the more corrupt it turns out to be. They also discovered that it was involved in the cleanup of a meteorite, which killed several people involved in the operation. The Human Vapor, whose real name was Ren, was also a part of the operation, but the files on him don’t specify what happened to him.

Is Kyoko Dead?

While Kyoko begins as a journalist investigating the mysterious Human Vapor, it later turns out that she is the one controlling him and making him murder the people connected to the White Center. It turns out that when she was a child, she was rescued by a man named Ren, whom she saw as a loving father figure. However, he was sent to work on the meteorite cleanup, and the alien substance’s toxicity turned him into Human Vapor. Kyoko found out about it years later when she returned to the place she and Ren used to call home. It turns out that even after becoming the Human Vapor, he returns to the place where he was the happiest.

This, and the fact that he is reanimated after listening to the song that connects him with Bunko Ramen and Kyoko, convinces her that it is Ren after all. Kenji believes that the real Ren died years ago, and that the Vapor that escaped the meteorite that day has assumed Ren’s form because he was in the meteorite’s vicinity at the time. By this logic, the Human Vapor should be nothing more than a murderous, mindless entity. But he turns out to be wrong, and Kyoko is proven right. In the end, it becomes clear that the Human Vapor can be controlled by anyone, so the only way to stop him from killing others is to stop him once and for all.

Kyoko tells Kenji she has a way to do it and convinces him to have Miura send the Human Vapor after her. Kenji thinks she might use her connection with Ren to stop him, but it turns out that she had something else in mind. She left the entity come after her, only to have it trapped inside a vault beneath JNT’s building. With no way to escape, the Vapor would be trapped there forever and wouldn’t kill anyone else. However, the vault can only be closed from the inside, so Kyoko has to get trapped with the Vapor. As soon as the vault closes, the Vapor attacks Kyoko, and a helpless Kenji watches everything unfold from the outside.

Does Kyoko Become Human Vapor?

Kenji watches the Vapor engulf Kyoko completely, but interestingly, it is nothing like how it killed its previous victims. A blue thing seems to come out of the smoke and looks at Kyoko from a distance. Meanwhile, the memories of her childhood, especially the time she spent with Ren. One could think that this is her life replaying moments before her death, but when the dust settles, there is no sign of Kyoko. She disappears into thin air, much like Ren disappeared all those years ago. All her things, including her clothes, shoes, watch, and even the ring she found in Kenji’s car, are left behind. But there is no physical sign of her.

Kenji takes it to mean that she is dead. However, if the Vapor really killed her, it would have left behind a body and a lot of blood. All of its victims were found in the previous cases, which means what happened to Kyoko is not death. Kenji is not in a mental state to process it, and in his mind, he accepts that the woman he loved is gone for good. The rest of the world, however, thinks otherwise. Because there is no body and because her involvement with the Vapor had come to light, everyone thinks that she fled for fear of getting arrested. One year later, the news channel she worked for runs a story speculating that she and Vapor are on the run.

Meanwhile, Kenji visits her grave, where he leaves behind the ring he had meant to propose to her with. It could be the sign that he is finally moving on from her. When he returns home, he plays her song, the one that she and Ren bonded over, and the same one that played on the radio the night Kenji and Kyoko spent on a stakeout. He lies on the couch, closing his eyes and thinking about her, and doesn’t notice a trail of smoke entering the house. In the background, a woman materializes from the smoke, and the final shot shows Kenji realizing someone is in his apartment.

Given the way she disappeared, it is clear that Kyoko has become the Human Vapor. She was right in believing that Ren was still somewhere inside the smoke-entity. This is why, perhaps, the Vapor chased after her but didn’t actually kill her. Perhaps it attacked her with the intent of killing, but Ren’s memories stopped the Vapor from hurting the girl he’d loved like a daughter. Now, she is the Vapor, and despite no longer being human, her memories are still in there. The fact that she was called in by the song proves this. Kenji will be happy to reunite with her, but it remains to be seen whether he will use her to exact justice, as she did when she was still alive.

Is Miura Arrested? Who did He Call?

As the story of the Human Vapor comes to light, it turns out that he is being ordered around by Kyoko to bring a certain group of people to justice. These people were behind the atrocities inflicted on the children and homeless people at the White Center, and were later involved in the cover-up of the meteorite, which eventually claimed Ren’s life and turned him into the Vapor. Kyoko starts by killing Mori, her mother’s then-boyfriend, who was connected to the yakuza. He gives the names of Sano and Obata, and eventually, Kyoko also discovers the involvement of Sakamoto and someone named Kai, who turns out to be the city’s mayor, Miura.

He is up for re-election and is more dangerous than all the men the Vapor has killed so far. He is ruthless and resourceful and ends up taking over the Vapor’s control. When Kenji becomes involved, he makes it clear that he doesn’t approve of killing anyone. He will bring Miura to justice, but not by having him murdered by an alien entity. This means the only way to bring him to justice is to find incontrovertible evidence against him and expose him for the villain he is to the world. They get that evidence from the camera Fujita hid in the cave the night he and Kaho found the Vapor. The camera captures the moment when Miura instructed the Vapor to orchestrate an attack on him, killing three people working for him.

This was to gain sympathy points that would win him the election. Kyoko and Kaho get the tape out, and Kaho brings it to Miura’s competition. Since the politician cannot post anything without verifying it, and there is no time to go through due process, Kaho uploads it to her YouTube channel. It is then reposted by the politician’s office and picked up by all major media outlets. With that, Miura is exposed for good. Interestingly, even he is not at the top of the food chain. The fact that he is now going to lose the election by a landslide leads his boss to leave him to the wolves.

He realizes that he, too, has been used as human fuel, the way he used everyone else to further his goals. Because he will not be protected anymore, he decides to end his life. However, Kenji finds him in time, stops him from killing himself, and arrests him. It is not revealed who Miura called before he tried to jump from the top of the building, but it is clearly someone more powerful than anyone the Vapor has killed so far. It also means that Miura will not name that person to save himself because he knows it will turn out badly for him. It also means that the pecking order is longer than Kyoko and Kenji had imagined, and the real culprits responsible for the atrocities on the common people are still out there.

Is Yoshida Dead? What Happens to Kaho, Mishiko, and Tatsuya?

While the Human Vapor is introduced as a murderous entity, it later turns out to have less blood on its hands than the real criminals. The investigation into the White Center and the meteorite cleanup reveals that corrupt cops were also involved and are still actively working to hamper the investigation. One of those cops is Yoshida. He turns out to be on the payroll of the yakuza and is revealed to have murdered people for them, including Sakamoto, his boss, who had decided to come clean about everything to the world. While Kyoko suspects him from the beginning, it isn’t until later that his colleagues figure out the truth about him.

When Kenji accuses him of killing Sakamoto, no one takes him seriously, but Mishiko notices the blood on his sleeve. Later, when the team is on its way to arrest Miura, Yoshida tries to kill Kenji, but Mishiko stops him. An intense fight ensues between them, and he almost kills her. But luck favors her, and in the end, he dies a brutal death of his own making. One year later, we discover that Mishiko has been promoted, and so has Tatsuya. Their equation mirrors Kenji and Kyoko’s when they are brought together to work on a case that needs them to be on a stakeout.

They bond over the intense year they had with the Human Vapor and all the killings, and the interaction suggests that they are going to be very good friends, to say the least. Meanwhile, Kaho becomes the face of the YouTube channel that she and Fujita used to run together. When he was still alive, he kept asking her to go in front of the camera, but she was scared to put herself out there. She eventually does it when she has to expose Miura and avenge her brother, and from here, she never looks back. A year later, we see her continuing the work, now with millions of followers, which is what her brother always wanted.