While working in the Gaea Japan promotion in mid-90s, Ozaki formed the villainous Oz Academy stable with Chikayo Nagashima, Rieko Amano and Sugar Sato, eventually opening a training school under the same name. Oz Academy eventually started promoting sporadic independent events, featuring members of the stable and Ozaki's trainees, with the first event held on June 21, 1998—robin ER