BYUNGSUNG KIM (BK) is a rapper from Osaka Japan. After about three years in prison, in 2018, joined Hibrid Entertainment. It is no exaggeration to say that the most dark rap in Japan. He is also active in a group called Force Limit with his classmate rapper, Japp Pepper, and WILY WNKA, who currently belongs to One percent. Released mixtape “Speedy Gold Ninja” in 2018. He is now in jail again to explore him new music.