Hui of the group Pentagon will take on his first musical challenge since his debut with the musical "Sonata of a Flame."

Based on Kim Dong-in's short novel "Sonata of a Flame" in 1930, "Sonata of a Flame" is a psychological thriller genre musical about the story of composer "J," who made his debut splendidly but has not written a single song since then and is always suffering from anxiety, creating incredible music after witnessing his death.

Hui will make his musical debut in the role of "J," a tragic composer who creates beautiful melodies as he approaches death. Hui is expected to show off his excellent vocal and acting skills, as well as his piano skills on stage as a composer in the drama.