Yumiko Hotta
Haruyama made her professional wrestling debut for the JWP Joshi Puroresu promotion on January 23, 1998, facing Erika Watanabe at Korakuen Hall. Later that year, Haruyama won the Souseiseki Cup, JWP's tournament for rookies. Haruyama followed that up by winning another tournament the following year to become the new JWP Junior Champion. After graduating from the junior division, Haruyama became one of JWP's top wrestlers, winning back-to-back MVP Awards in 2003 and 2004 and culminating in April 2008, when she defeated Azumi Hyuga to win JWP's top title, the JWP Openweight Championship for the first time. Haruyama held the title for two years, making successful defenses against the likes of Kaori Yoneyama, Kyoko Kimura, Leon, Ran Yu-Yu and Yumiko Hotta, resulting in her winning yet another MVP Award 2008. Her reign ended in April 2010, when she lost the title to Nanae Takahashi in her ninth defense.