Love, secrets, and complex emotions intertwine in one of 2025’s most anticipated BL K-drama Secret Relationship (비밀 사이). Set to captivate audiences with its compelling narrative of class differences, workplace tensions, and unexpected romance, this adaptation of McQueen Studio’s popular webtoon promises to deliver both heart-fluttering moments and social commentary. Before Secret Relationship BL K-drama’s much-anticipated premiere, let’s look at the release date, cast, and trailer details.

Release Date of BL K-drama Secret Relationship

The latest BL K-drama, Secret Relationship will premiere on February 27 at Watcha. The drama features an impressive ensemble of rising stars and established actors.

Secret Relationship Cast Teases a Star-studded Lineup

The main cast of Secret Relationship features Kim Jun Seo as Jung Da On, Cha Sun Hyung as Ju Seong Hyeon, Kim Ho Young as Sin Jae Min, and Cha Jung Woo as Kim Su Hyeon.

Kim Jun Seo steps into the role of Jung Da On, marking a significant departure from his K-pop roots as a member of Wei. His previous experience in variety shows like “Idol K-Goods Tour ‘Paradao'” and “WEi Chemi-Mate ZZG” has prepared him for this challenging dramatic role.

Cha Sun Hyung, known for his nuanced performances in “The Blue House Family” and the critically acclaimed “Nevertheless,” takes on the complex character of Ju Seong Hyeon. His portrayal promises to bring depth to the character’s journey from antagonist to potential love interest.

The main cast includes the talented Kim Ho Young as Sin Jae Min and Cha Jung Woo as Kim Su Hyeon. Cha Jung Woo, fresh from his leading role in “Branding in Seongsu” and his memorable performance in “The Tale of Lady Ok,” rounds out this stellar ensemble.

Secret Relationship Trailer Teases a Tale of Complex Hearts and Hidden Truths

At the center of this intricate narrative is Jung Da On, a brilliant but frugal young professional whose penny-pinching ways mask a deeper story of resilience and determination. Despite his current success, Da On’s humble beginnings have left an indelible mark on his approach to life – much to the frustration of his wealthy coworker, Ju Seong Hyeon, who finds himself inexplicably drawn into Da On’s world after a revealing incident involving Da On’s struggling family.

The plot thickens with the presence of Sin Jae Min, Da On’s former tutor, whose reappearance stirs up long-buried feelings and complications. As these relationships develop, viewers will witness how past and present collide, forcing our characters to confront their prejudices, fears, and unexpected attractions.

Where to Watch Secret Relationship

Mark your calendars for February 27, 2025, when “Secret Relationship” premieres exclusively on Watcha. International fans haven’t been forgotten – the series will be available on FOD in Japan and iQIYI in selected regions, making this compelling drama accessible to a global audience.

The recently released trailer offers a tantalizing glimpse into the production’s high production values and chemistry between the lead actors. Viewers can expect stunning cinematography, carefully crafted scenes, and the emotional depth that has become a hallmark of quality K-dramas.

With its blend of romance, drama, and social commentary, “Secret Relationship” is poised to become one of 2025’s must-watch series for both BL enthusiasts and K-drama fans alike. As the premiere date approaches, anticipation continues to build for this promising addition to the growing catalogue of innovative Korean BL content.