Yesterday, or by its original title รอยรัก วันวาน, is a 2026 production Thai BL series. Taking a quick look at the plot: Veirmeets Kelvin to conduct business on behalf of the VPG group of companies. On one side, we have a corporate war; on the other, Kelvin’s obsessive state of mind triggers a psychological battle between him and Veir, leading to the start of a strange romance and love. The classic BL theme of love caught between corporations and families is, this time, infiltrated by obsessions.
The “PeatFort” partnership, a staple in the Thai BL series world, must be exciting for the fans. For those interested in the acting of Peat Wasuthorn Chaijindar and Fort Thitipong Sangngey, you can also check out Love Sea (2024) and Love in the Air (2022). You will particularly enjoy their performance in Love Sea. Now, let’s dive into the details and move on to the summary, plot, and review of Yesterday.
🏳️🌈🇹🇭 Curator’s Recommendation: The Best Thai BL Catalog
Yesterday (2026) Thai BL Summary, Plot, and Analysis
Instead of a separate summary for each episode, here is a general flow of the story. You are welcome to contribute detailed insights in the comments.
Veir, as the heir to the VPG group, will be a guest at the KING group’s family home for a few days to gather the necessary information for a new business contract.
The KING group is in the midst of an internal power struggle. The most powerful heir, Ken, is an individual entangled in intrigues, trying to keep all the power in his hands. Meanwhile, Kelvin, who exists in the house as a stepson and an “insignificant” heir, will disrupt all the balances.
Veir sees great potential in this man he has just met. However, he has not yet seen his dark side. What begins as a one-night stand evolves into a relationship stretched over time, oscillating between love and hate, and between a casual fling and deep affection. The relationship, which Veir initially didn’t care much about and saw as a game, becomes more complex as the business partnership progresses.
However, Kelvin is an obsessive person. His dark inner world has finally come to light. While the confusion of love and enmity continues between the two, the conflict between the corporations also persists.
Series Plot, Review, and Commentary
While the series handles the conflict of interest between two giant corporations and the power and inheritance struggles among family members, it also traces the love and passions of the young heirs named Kelvin and Veir.
For “PeatFort” fans, the series will not offer a passionate, pure love like the one in Love Sea. BL viewers generally enjoy pure love stories where young gay characters are constantly in a romantic bliss. Although having side characters like fathers and half-brothers in this WeTV Original BL series might be a negative for those seeking “pure boys’ love,” the series is generally watchable for its obsessive love theme.
Amidst the simple conflict of corporations, the audience will have to piece together Kelvin’s character—his obsessions, his villainous side, and his obsessive love—within the complex time loops of the series. Overall, Peat Wasuthorn Chaijindar does an excellent job portraying a dominant, obsessive psychopath in the character of Kelvin. Of course, on global sites like MyDramaList, fans will likely clash, criticizing the performance and chemistry.
On the other hand, aside from Veir’s (Fort Thitipong Sangngey) excessive makeup, which looks as if it’s about to melt off his face, he is a character who doesn’t value people and prefers “use and throw” relationships. Initially looking down on Kelvin, he will eventually think he made a mistake once he starts truly caring for him.
The series progresses with familiar Thai BL dynamics. It’s a story set among the elite, far from a representation of real life. Besides that, viewers looking for a youth drama filled with university and school romance from start to finish will likely not find what they are looking for. However, although typical Thai BL series dynamics (idol actors, luxury, excessive makeup, etc.) are abundant in the series, the love theme is a bit different this time, and other topics are also in focus.
What happens in the finale? Is it worth watching, and what will happen next? Follow this post and contribute with your comments for the answers to these questions.
Series Information
The series focuses on the obsessive love between the heirs of two giant corporate groups, while the conflict between the families also affects the complex relationship between Kelvin and Veir. This 2026 production consists of 10 episodes, each lasting 1 hour and 9 minutes. The length of the episodes might bore you a little. If you wonder where to watch: you can view it on WeTV and the WeTV YouTube channel. For more “trash” information, fan conflicts, and to read about fan disappointments, you can check out MyDramaList.
Actors and Characters
A brief “who’s who” of the series actors and characters:
- Peat Wasuthorn Chaijindar – Kelvin: An individual constantly kept in the background and ignored by his father as an “insignificant” heir of the KING group. As a successful and high-capacity individual, he enters into a complex relationship with the newly met Veir.
- Fort Thitipong Sangngey – Veir: The heir to the family company. With both the intrigues within the family business and his utilitarian, unreliable personality, he will encounter Kelvin’s obsessive personality.
👉 You can access the Turkish version of the review here.
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 Thai BL. An obsessive love between Kelvin and Veir amidst corporate conflict. Discover our curation.){kind=link}