Lee Jun Young is set to star in the upcoming tvN drama 'Four Hands, Two Sonatas,' where he portrays a gifted pianist who must abandon his dreams, co-starring with Song Kang, with whom he shares a transformative on-screen bond. The drama's promotional materials, including a poster and teaser clips, highlight their evolving relationship from rivalry to partnership. Meanwhile, Lee Jun Young has also begun his mandatory military service, interrupting his acting schedule.