UWF International
Nakanishi's father, Shigezo, is also involved in professional wrestling as the owner of the Japan Pro-Wrestling 2000 promotion. On January 23, 2005, Nakanishi married Makoto Oe, a kickboxer, UWF International alum and a trainer at U.W.F. Snakepit, adopting his surname in the process. The Oes have four children together: , , , and . Momoe currently holds gymnastics classes at the U.W.F. Snakepit gym on Saturdays.