You know that feeling when a show just hits differently? It isn't just the script. It is the chemistry. When people talk about the My Beautiful Man cast, they are usually obsessing over how Riku Hagiwara and Yusei Yagi managed to turn a potentially toxic high school dynamic into one of the most hauntingly beautiful romances in Japanese television history. Honestly, it’s a miracle.
The show—known as Utsukushii Kare in Japan—rests entirely on the shoulders of these two. If the casting had been off by even a fraction, the whole thing would have collapsed. We’re talking about a story where one guy literally worships the ground the other walks on, while the other struggles with a massive ego and deep-seated loneliness. It's weird. It's intense. And yet, the actors make it feel more real than almost any other drama in the genre.
Riku Hagiwara and the Art of the Social Outcast
Riku Hagiwara plays Kazunari Hira. This isn't an easy role. Hira is a "loner" who stutters when he's nervous, which is basically all the time. In the hands of a lesser actor, this could have felt like a caricature. But Hagiwara, who has been acting since he was a kid (appearing in projects like Assassination Classroom and 12 Suicidal Teens), brings this physical stillness to the role that is almost painful to watch.
He uses his eyes. A lot.
There’s this specific way he looks at Kiyoi—it’s not just "love," it’s genuine religious fervor. Hagiwara has mentioned in interviews that he had to find a balance between Hira’s creepy stalker-ish tendencies and his genuine, pure-hearted devotion. He succeeded. You kind of want to give him a hug and tell him to get some therapy, all while rooting for him to finally get the guy.
Yusei Yagi: More Than Just a Pretty Face
Then there is Yusei Yagi as Kiyoi Sou. Let’s be real: the character is described as a "King" whose beauty is basically a superpower. Usually, when a show tells you a character is that attractive, the actor can't quite live up to the hype. Yagi is the exception. As a member of the J-pop group FANTASTICS from EXILE TRIBE, he already had the stage presence, but his acting debut here was what shocked everyone.
Kiyoi is a difficult character to like initially. He’s mean. He’s arrogant. He lets Hira buy him ginger ale and act like a servant. But Yagi plays the "inner" Kiyoi with such vulnerability that you realize the arrogance is just a shield. By the time we get to the second season and the movie, Eternal, Yagi’s portrayal of a man desperately wanting to be loved as a human being—not just a god—is what makes the My Beautiful Man cast so legendary among fans.
The Supporting Players Who Keep It Grounded
While the "Hira-Kiyoi" bubble is the heart of the show, the surrounding cast prevents it from becoming too detached from reality.
- Akira Takano as Koyama: Poor Koyama. He’s the "second lead" who actually treats Hira like a normal person. Takano plays him with a kindness that makes the audience feel genuinely guilty for wanting Hira to go back to the guy who treats him like a footstool.
- The School Bullies: In the first season, the actors playing the high school clique did such a good job being unlikable that it made the shift in Hira and Kiyoi’s power dynamic feel earned.
The chemistry isn't just romantic; it's the way the ensemble reacts to Hira's strangeness. In the photography club scenes, you see a more grounded side of Hira’s life, which helps contrast the "dream-like" obsession he has with Kiyoi.
Why This Specific Pairing Worked Where Others Fail
Japanese dramas (JDramas) often have a very specific pacing. They can be slow. Methodical. The My Beautiful Man cast took that pacing and used it to build tension. During the filming of the movie, the director, Mai Sakai, reportedly encouraged the actors to lean into the silences.
There is a scene in the first season—the hand-washing scene—that went viral. There were almost no words. It was all tactile, visual storytelling. Hagiwara and Yagi have both spoken about how they spent time off-camera building a rapport so that the physical intimacy on screen didn't feel forced or "service-y." It felt like two people who were genuinely obsessed with each other's presence.
The "Eternal" Impact of the Cast
When the film My Beautiful Man: Eternal was released, it wasn't just a hit in Japan; it dominated charts across Asia. This is largely credited to the fact that the cast didn't treat it like a "BL" (Boys' Love) project. They treated it like a high-stakes character study.
The complexity of their performances meant the show bypassed the usual tropes. Hira isn't just a "sub," and Kiyoi isn't just a "dom." They are two broken people who fit together in a very specific, jagged way. You see Hagiwara's growth as Hira starts to find his own voice through photography, and you see Yagi's Kiyoi struggle with the reality of dating someone who refuses to see him as an equal.
Actionable Insights for Fans and New Viewers
If you're just diving into the world of Utsukushii Kare, don't just stop at the first season. The evolution of the My Beautiful Man cast is best seen across the entire timeline of the franchise.
- Watch the "Kiyoi POV" episodes carefully. In the first season, episode 6 shifts the perspective. It completely recontextualizes Yusei Yagi’s performance. You realize all those "mean" looks were actually looks of desperate longing.
- Follow the actors’ other work to see their range. Riku Hagiwara is a chameleon. Compare his role as Hira to his more assertive roles in thrillers, and you’ll see the sheer technical skill involved in Hira’s stutter and slouch.
- Pay attention to the color grading. Director Mai Sakai uses the cast like colors on a palette. Notice how the lighting changes when Hira and Kiyoi are in their own world versus when they are with other people.
- Look for the "Eternal" interviews. The behind-the-scenes footage shows just how much input the actors had on the blocking of their scenes, especially the more emotional confrontations in the final film.
The legacy of this cast is that they proved "niche" stories can have mainstream, prestige-level acting. They didn't play it safe, and that's why we're still talking about them years later.