目錄
⚠️ The following contains major spoilers for Episode 1, including the ending. I recommend reading after watching.
Episode 1 of Confession: The Secret After 25 Years looks at first like a 25-year unrequited love is finally being returned, but what it is really asking throughout is this: if someone has spent 25 years recording another person’s preferences, routes, and life choices, can that still be called love?
This Nippon TV Saturday drama from the July 2026 season takes only 54 minutes to gradually turn Sota’s thoughtfulness into something that feels more like surveillance and control. Paying Mariko’s bill for her, helping revise her proposal, remembering which movies she likes — each individual act looks gentle. But once the diary he has been writing for 25 years appears, all of that earlier kindness starts to feel wrong.
When the episode ends with “僕は君の運命の人になる” (“I’m going to become your destined person”), my first reaction was not romantic excitement. It was a chill down my back. Below is a breakdown of Episode 1, Hokuto Matsumura’s performance, the diary and kidnapping-case foreshadowing, and my current ranking of the most suspicious characters.
Confession: The Secret After 25 Years Cast and Character Relationships: Episode 1 Basic Information
Confession: The Secret After 25 Years is Nippon TV’s Saturday drama for the July 2026 season, airing every Saturday at 9 p.m., with each episode running about 54 minutes. It is a romantic suspense drama written by Mako Watanabe and directed by Takahiro Horie, Kosuke Suzuki, and Yuichi Katayama. The theme song is SixTONES’ “マイオンリー.” Episode 1 is titled “僕は運命の人になる” (“I Will Become Your Destined Person”), and the premiere recorded a household rating of 5.3% and an individual rating of 3.2%. The hashtag “#土ドラ告白” also reached No. 1 on X’s worldwide trends that night.
| Character | Actor | Setting |
|---|---|---|
| Sota Yukimura | Hokuto Matsumura | Employee at Nose Cosmetics. Originally in General Affairs before transferring to the Second Brand Division. Has been in love with Mariko for 25 years |
| Mariko Nose | Sae Okazaki | Executive at Nose Cosmetics and head of the Second Brand Division |
| Taisuke Sakura | Tetsuji Tamayama | Detective with the Metropolitan Police Department’s First Investigation Division and Mariko’s arranged-marriage prospect |
| Tomoya Sagara | Akihisa Shiono | Café manager and Sota’s university friend, who knows about his long-term feelings for Mariko |
| Izumi Takeda | Nozomi Sasaki | Employee in the Second Brand Division and Mariko’s secretary. Raising her seven-year-old daughter alone |
| Sayuri Nose | Miki Mizuno | Mariko’s stepmother and Keito’s biological mother |
| Takeshi Tateiwa | Tomomi Maruyama | Executive at Nose Cosmetics and head of the First Brand Division, competing with Mariko for control of the proposal |
Confession: The Secret After 25 Years Episode 1 Recap: How 54 Minutes Moves From Pure Love to Murder
Episode 1 is structured around repeatedly wrapping boundary-crossing behavior in thoughtfulness. Sota was bullied in elementary school, and Mariko stepped in to protect him. That same year, he also witnessed Mariko nearly being kidnapped and ran into a temple to get help, which led to her rescue. Those two events become the starting point for nearly every choice he makes afterward.
The two truly begin speaking to each other at a café that only accepts cash. Mariko realizes at checkout that she cannot pay by card, and Sota covers the bill for her before leaving immediately. She recognizes him in the elevator, notices the materials he prepared on Korean cosmetics, and transfers him from General Affairs to help with her project.
Problems then arise in both Mariko’s company project and her marriage prospects. Her grandmother Akiko arranges a meeting between her and Taisuke Sakura. Her stepmother Sayuri takes a photo outside the café and then calls someone, saying there is “something she would like them to help with.” At the company, Takeshi Tateiwa is also preparing to take control of Mariko’s proposal.
While staying late to help Mariko revise the proposal, Sota brings food from a café she once visited. Inside his phone case is also a photograph of Iguazu Falls in Argentina, which happens to be a filming location used in Marvel productions. All of these seemingly coincidental details actually come from information he has spent years collecting. The next day, the proposal is approved, while a bruise has appeared near Sota’s mouth. He had approached Tateiwa with evidence that Tateiwa improperly diverted company funds in order to secure a business deal, but Tateiwa fired back by pointing out that Sota himself had illegally accessed the company system. In the end, Sota had no choice but to kneel and beg Tateiwa to withdraw from the competition over the proposal.
The most frightening part of the episode comes when Sota returns home and flips through his diary. It is not really a diary. It is a 25-year observation record. While eating a cilantro salad with Tomoya, he says, “If you keep looking at something long enough, before you know it, you end up eating it. Do you think I can become her cilantro?”
The final three minutes deliver two blows in quick succession. Company president Ginjiro is reading a weekly magazine interview with Satoru Hatano, a former prisoner in the Setagaya serial child kidnapping and murder case — the same man who nearly abducted Mariko 25 years earlier. Then Tateiwa is stabbed to death, and the detective who arrives at the scene is Taisuke Sakura. Meanwhile, the opening sequence deliberately included a shot of Sota holding a bloodstained kitchen knife, immediately pushing suspicion toward him.
How Does Hokuto Matsumura Play Sota Yukimura? Obsession and Unease Beneath a Gentle Exterior
Hokuto Matsumura’s key technique is that he does not play Sota like a villain. He does not lower his voice or put on deliberately sinister expressions. The unease comes almost entirely from the moments without dialogue: his gaze lingers one beat longer than normal, the corner of his mouth moves before he remembers he should smile when someone speaks to him, and his voice becomes slightly thinner when he suppresses emotion. After Episode 1 aired, many reactions described him as “terrifying, but impossible to look away from.” Quite a few viewers also noted that Matsumura’s naturally clear, clean image makes Sota initially look much closer to the male lead in a pure romance. Matsumura’s appearance and acting style temporarily make the audience overlook what Sota has actually been doing. Once the diary appears, all the earlier gentleness suddenly feels wrong.
Another description that was repeatedly quoted was “an extremely diligent, hard-working stalker.” I think that description is incredibly accurate, because everything shown in the first half can easily be mistaken for a virtue: studying hard, enduring, being considerate, and not actively causing trouble. The meaning only begins to shift once the script places those qualities inside 25 years of stalking and investigation. Sota’s internal monologue is filled with desire-form phrases such as “役に立ちたい” (“I want to be useful”) and “喜んでほしい” (“I want her to be happy”), the kind of Japanese 「たい」 desire constructions that carry no aggression in tone. What makes them frightening is that the subject of those desires is always him.
Confession: The Secret After 25 Years Episode 1 Foreshadowing: Did Sota Kill Tateiwa?
Episode 1 deliberately concentrates suspicion on Sota, but it is still too early to conclude that he is the killer. Sota does possess evidence of Tateiwa’s improper diversion of company funds and met with Tateiwa before the crime. On the same day, someone also sent the relevant documents to Ginjiro. Episode 1 does not reveal whether the sender and the person who stabbed Tateiwa are the same individual. Those documents neither prove that Sota killed him nor eliminate him as a suspect.
For now, I read the opening shot of the knife as narrative misdirection. The camera only shows Sota and the weapon. It does not explain why he is holding the knife, when the image takes place, or show the stabbing itself. Episode 1 gives us too little information. At this point, the shot can only prove that Sota came into contact with the weapon, not that he killed Tateiwa.
Who Is Most Suspicious in Tateiwa’s Stabbing? Taisuke Sakura, Sayuri Nose, and Tomoya Sagara
My current ranking is Taisuke Sakura first, Sayuri Nose second, and Tomoya Sagara third. Taisuke’s path into the story is almost too smooth: he saves Akiko and gains the opportunity to be introduced to Mariko, then happens to become the detective in charge of the stabbing case. His reaction when he first sees Mariko is also unnatural. In Episode 1, Taisuke occupies two positions that are both unusually close to Mariko: he is her newly introduced marriage prospect and also the detective handling Tateiwa’s stabbing. That arrangement makes it easy to wonder whether both encounters were really coincidences, although there is currently no evidence proving that he is involved in the case.
Sayuri has the clearest motive. She wants her biological son Keito to take control of the company, and Episode 1 still has not revealed whom she called on the day of the arranged meeting. Tomoya’s suspicious point is not what he does, but how much he knows. Sota can speak to him without reservation about a 25-year unrequited love, yet Tomoya seems almost too calm when confronted with that level of obsession. Episode 1 has not yet explained whether he knows about the things Sota has been doing in private.
Foreshadowing From the Kidnapping Attempt 25 Years Ago: What Is Satoru Hatano’s Connection to the Nose Family?
The person behind the attempted kidnapping was Satoru Hatano, but what remains blank is his connection to the Nose family. Ginjiro’s reaction while reading Hatano’s weekly magazine interview late at night is also clearly unusual, which at minimum suggests that he knows more than Mariko does. How much he knows remains unanswered in Episode 1. The episode also leaves open speculation that Hatano and Mariko could be related by blood, but there is not enough evidence for that interpretation yet. If Hatano had only been trying to take his own child, the other murdered children in the case would still remain unexplained. Izumi Takeda’s status as a single mother raising a seven-year-old daughter is also explicitly included in the official character profile, even though Episode 1 only briefly shows the child in a photograph. Whether that family information will connect to later cases remains uncertain.
Confession: The Secret After 25 Years Episode 1 Review: The Scariest Thing Is Not the Knife, but the Diary
After Episode 1, the image that stayed with me was not the bloodstained knife. It was Sota’s expression while flipping through the diary. It was not excitement or regret. It was confirmation — like someone checking the progress sheet for a long-term project and making sure the past 25 years have stayed on course.
What genuinely made me feel cold is that I can completely understand his method of effort. Looking up what someone likes, remembering where they have been, appearing at exactly the right moment when they need help — reduced in scale, that resembles the way many people behave when they are in love. Episode 1 does not give me a comfortable distance from which to laugh at him. Instead, it keeps making me calculate where the boundary is. Looking something up once is thoughtful. Remembering it for ten years becomes something else. There is no scale marking exactly where that line is crossed.
The cilantro scene is my favorite piece of writing in the episode. He compares himself to a flavor that someone initially dislikes but might eventually eat if they become accustomed to it. The tone is gentle, but the content is really a war of attrition — he is not waiting for love, he is waiting for the other person’s habits to be worn down. That kind of negative space in the dialogue is much more uncomfortable than a direct confession.
Then there is the bruise and the kneeling. In that scene, Sota is the person who gets hit, but he is also the one who uses improperly obtained information to pressure Tateiwa into withdrawing. I cannot simply choose one side and sympathize with him. The cruelest thing Episode 1 does is make me briefly stand on his side, then force me in the final minute to realize where I had just been standing. Waiting 25 years sounds romantic. I read it differently: he handed the steering wheel of his own life to someone who did not even know she was holding it.
Where Can You Watch Confession: The Secret After 25 Years? Netflix, TVer, and Hulu Streaming Information
Viewers who like stories such as Flower of Evil or N no Tame ni, where “love itself becomes part of the suspense,” will probably be pulled in from Episode 1. Anyone looking for a light Japanese drama to watch casually should be prepared for something heavier. In Japan, the drama airs every Saturday at 9 p.m. on Nippon TV, with catch-up streaming available through TVer and full streaming on Hulu. Netflix has already created title pages in some regions, but as of August 2, 2026, the Taiwan page still showed the series as unavailable. Actual release regions and dates should be checked directly on the platform.
The strongest part of Confession: The Secret After 25 Years Episode 1 is not that it immediately turns Sota into an obvious creep, but that his behavior always remains half a step away from being clearly labeled dangerous.
Paying for Mariko’s meal, helping with her proposal, remembering what she likes — each action looks thoughtful by itself. Once they are placed inside 25 years of observation records, they feel completely different. Hokuto Matsumura also does not rush to label Sota as either a good person or a bad one, which is exactly why the audience keeps finding excuses for him while simultaneously becoming frightened that those excuses are so easy to find.
What may become even more important than the identity of the killer is what happens after Mariko learns the full truth: will she still be able to call those 25 years love?
FAQ
Episode 1 follows Sota Yukimura as he moves from quietly watching Mariko to actively intervening in her life. In order to help Mariko keep control of her project, he uses evidence of financial misconduct to pressure Takeshi Tateiwa. That same night, Tateiwa is stabbed. The episode simultaneously establishes two ways of reading Sota’s behavior — “pure love” and “surveillance” — before allowing the two to overlap in the final minute.
Episode 1 does not reveal the answer. The drama strongly points suspicion toward Sota Yukimura, but the timing of the evidence being sent out and the stabbing does not completely align. At this stage, detective Taisuke Sakura and stepmother Sayuri Nose are among the suspects with the most notable clues.
In Japan, the drama airs every Saturday at 9 p.m. on Nippon TV and can be watched through TVer and Hulu. Outside Japan, Netflix is releasing the drama weekly in many regions. Availability and release schedules may change, so it is best to check the platform directly.
Reactions focus on his “quiet sense of losing control.” Instead of using exaggerated expressions or volume to portray abnormality, Matsumura builds discomfort through how long Sota holds his gaze, delayed facial reactions, and a restrained, suppressed tone of voice.
Flower of Evil and N no Tame ni are natural follow-ups because both similarly use love itself as a driving force for suspense. For a colder style of storytelling, the Japanese drama Nemureru Mori moves in a similar direction. What these stories share is that the protagonist’s devotion is itself part of the case.