Seo Kang Joon's long-awaited return to the spotlight after completing his military service has sent fans into a frenzy, marking a triumphant comeback. The actor's latest project, MBC's 'Undercover High School,' debuted on February 21 to an audience eager for his return, and it did not disappoint.

The drama kicked off with a solid 5.6% viewership rating, quickly gaining momentum with each passing episode. Viewers were captivated by Seo Kang Joon's performance, with many hailing it as a tour de force. Departing from his usual romance roles, Seo Kang Joon embodies the character of Jung Hae Sung, an NIS agent posing as a high school student on a mission to uncover hidden treasures.

Embodying the role of an "NIS ace" with finesse, Seo Kang Joon seamlessly transitions from high-stakes action sequences to light-hearted comedic moments. Viewers have been hooked by the drama's thrilling storyline and Seo Kang Joon's dynamic portrayal, showering him with accolades such as "masterful" and "career-defining."

In a delightful twist, Seo Kang Joon brings comic relief to the show with his impeccable timing and bumbling attempts at teenage antics. His character's antics add an extra layer of charm, evoking laughter and endearing him to the audience even more.

During a recent press conference, Seo Kang Joon shared his enthusiasm for the project, praising its unique blend of genres. His versatility as an actor has clearly paid off, as 'Undercover High School' continues to dominate television and streaming platform rankings, firmly establishing Seo Kang Joon as a top-tier talent in the industry.

The latest data from Good Data Corporation confirms the show's success, with 'Undercover High School' clinching the top spot in both TV and OTT categories, while Seo Kang Joon himself emerges as a leading figure in the actor rankings for the first time in his career.