|This article is about a/an ally in Juken Sentai Gekiranger.|
Natsume Masaki is Miki's daughter, attending elementary school with her friends Shinichi and Seiji. She has helped out the Gekiranger team by practicing dancing along with them and teaching Jan how to be patient with "Koto-Koto." She has also helped out Gou on his path to becoming a Gekiranger by showing him that even though he could have fled to save himself, he decided to protect her from Mele. She decides to learn the Beast Fist in the finale, becoming one of Retsu's students. She is portrayed by Sakina Kuwae.
- Juken Sentai Gekiranger
- Lesson 7: Shuba-Shuba Dancing!
- Lesson 8: Koto-Koto… Earnestly Koto-Koto
- Juken Sentai Gekiranger: Nei-Nei! Hou-Hou! Hong Kong Decisive Battle
- Lesson 12: Zowan-Zowan! Confrontation Beast-Fist, Training Starts
- Lesson 23: Gure-Gure! Gure-Gure! Sukeban Captain
- Lesson 25: Hine-Hine! Shigeki is Mine Alone
- Lesson 31: We Muni-Muni!
- Lesson 39: Uro-Uro! The Children Don't Return
- Lesson 43: Hapi-Hapi! Merry Christmas, Osu
- Lesson 49: Zun-Zun! The Beast-Fist, for All Time...
- Engine Sentai Go-Onger vs. Gekiranger