In a recent interview, Rain, portraying Seo Do-yoon in "Red Swan," disclosed the dedication and meticulousness that went into his eye acting for the series.

Emphasizing the importance of conveying emotions through his eyes, Rain expressed the challenges of wordlessly expressing deep feelings in intense situations on screen.

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"I wanted the action scenes to look cool, so I had many conversations with the martial arts director. I paid a lot of attention to these aspects during filming. Instead of having many cuts, we aimed for long takes to show the full scope of the action. I haven't seen the final product yet, so I'm looking forward to it."

-RAIN

To preserve the authenticity of his performance, Rain revealed a unique preparation method - fasting the night before or engaging in a 30-minute run before shooting to prevent his eyes from swelling due to his naturally small eye shape.

"It was very challenging. When you're sad, you have to show sadness; when you're lonely, you have to show loneliness, but I couldn't use words and had to convey everything with my eyes. That was difficult. I have small eyes, so to prevent them from swelling, I fasted the night before or ran for 30 minutes before shooting."

-RAIN

Rain's commitment to his craft and attention to detail in portraying Seo Do-yoon's emotions without words underscores the depth of his dedication to his role in the drama.

"Red Swan" narrates the intertwining destinies of Wan-soo and Do-yoon amidst the clandestine affairs of the Hwain Family, promising a narrative rich with suspense and emotion.

Rain's revelations offer viewers a glimpse into the intricate process of bringing his character to life through subtle yet powerful eye acting techniques.

KdramaStars owns this article.

Written by Joan Cabigas.