A strange girl who lived in a forest outside of Blue City, Fenis seemed to be able to talk to R.D.'s Liger Zero. She led RD. and the Zoid to a place in the forest where an ancient Zoid was resting. While RD fought Blake, she tried to revive the ancient Zoid, seemingly praying to it, apparently with some help from Matt who somehow heard her voice.

The Zoid was the Jet Falcon which was able to fuse with the Liger Zero to form the Liger Zero Falcon.

While not explicitly stated, it was implied that Fenis was somehow connected to the Fire Phoenix. Evidence of this that she was convincing RD not to run because it's not what his partner would've wanted. Also, when RD (in his mind) told the Fire Phoenix of his success with his new Fuzor, it was Fenis (also in her mind) who replied. Later, in the final scene of the episode, RD discovers her hairpin, a phoenix feather, on the ground after she leaves and begins to think that she herself was the Fire Phoenix in human form but immediately discards the idea.

(Source: Wikipedia)

R.D. is a delivery boy who works for a company called Mach Storm in order to earn money to search for the legendary Alpha Zoid. A Zoid that he heard rumours about from his dad that he passionately believes in. Mach Storm also doubles as a Zoid Battling team. In R.D.'s first Coliseum Zoid Battle, he encounters a team that can fuse Zoids. R.D. soon discovers that he has a Zoid that can computably fuse with his Zoid, Liger Zero. After this happens R.D.'s adventure to discover the truth about the Alpha Zoid begins.
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(Source: Anime News Network)

**Also known as:** , 

In August 1999, she changed her name from Mifuyu Hiiragi (柊美冬) to Kyoko Tsuruno (鶴野恭子) On May 1, 2004, she changed her name from Kyoko Tsuruno to her real name,  Tomoko Ishimura.