J Harmony

J HARMONY Co., Ltd. is a Tokyo-based entertainment agency founded in February 2016, operating from Shinjuku Ward and led by Kim Hyunjoon as its representative. The firm specializes in artist management, fan-club operations, event planning and production, and content distribution, with a focus on supporting Korean-wave (Hallyu) artists’ activities in Japan. It positions itself as a bridge between Japanese and Korean entertainment markets, offering localized fan services, concert and fan-meeting production, and merchandise/admission coordination for Japanese audiences. Over the years, the company has become notable for managing official Japanese fan-clubs for a number of Korean actors and idols, as part of its strategy to leverage Japanese cultural familiarity while engaging K-pop/K-drama fandom.