During an extensive wrap-up interview following the successful conclusion of the TVING original series Yumi’s Cells 3, Kim Jaewon reflected on his journey, explicitly citing the leadership and professional grace of his former co-star as the guiding light for his own career trajectory.

The Architecture of Respect: Lessons from the ‘King the Land’ Set

According to WikiPickyMedia, Kim Jaewon looked back on his early career milestones with deep humility, particularly his experience working alongside Lee Junho on the international blockbuster King the Land. He described the experience of "breathing the same air" as the veteran star as a transformative period that reshaped his understanding of a lead actor’s responsibilities. Kim noted that while Lee Junho possesses immense star power and years of industry experience, it was his quiet, consistent demonstration of the "proper lead mindset" that left the most lasting impression.

The young actor emphasized that Lee Junho’s influence transcended mere acting technique, focusing instead on his unwavering character behind the scenes. Kim observed that even during the most physically demanding and exhausting moments of production, Lee Junho consistently prioritized the well-being of the staff and his junior colleagues over his own comfort. "I interpreted those actions as a deep form of respect for every individual on that set," Kim explained, adding that as he stepped into leading roles himself, those memories became the standard by which he measures his own conduct.

Collaboration and Character: Balancing Kim Go-eun and Shin Soon-rok

While Lee Junho established the foundation for his professional ethics, Kim Jaewon also credited his Yumi’s Cells 3 co-star, Kim Go-eun, for teaching him the value of creative synergy. He praised the acclaimed actress for her egalitarian approach to their work, noting that she treated him as a true collaborator rather than a subordinate junior. By inviting his input and asking for his creative preferences, she fostered a partnership that allowed Kim to fully immerse himself in the character of Shin Soon-rok.

In discussing his portrayal of Soon-rok, Kim Jaewon estimated a 70-80% synchronization between his real-life personality and the fictional character. He characterized himself as a professional who maintains a rational and cool-headed demeanor during work hours, yet retains a playful and "boyish" charm once off-duty. In a lighthearted nod to the show's theme, he joked that while his "Hunger Cell" remains relatively inactive, his "Love Cell" is exceptionally large, fueled by his deep affection and frequent communication with his global fanbase.

A New Pillar of the Industry: The Legacy of Mentorship

Kim Jaewon’s reflections highlight a vital cycle of professional mentorship that continues to strengthen the K-drama industry. By internalizing Lee Junho’s "leadership of respect" and emulating Kim Go-eun’s vibrant, inclusive energy, Kim Jaewon is establishing himself as a leader who prioritizes the collective health of his production team. As he concludes his successful tenure on Yumi’s Cells 3, it is evident that the "Junho Standard" has successfully transitioned from one generation to the next, ensuring that Kim Jaewon remains a respected and beloved pillar of the contemporary Hallyu wave.