|Appears in||Juken Sentai Gekiranger, Juken Sentai Gekiranger: Hong Kong Great Deciding Match, Gekiranger vs. Boukenger, Go-Onger vs. Gekiranger, 199 Hero Great Battle, Super Hero Taisen, Super Hero Taisen Z|
|Debut||Lesson 1: Niki-Niki! Fierce Beast Fist|
|Last Seen||Super Hero Taisen Z|
|Power Rangers Counterpart||Theo Martin|
|Portrayed By||Manpei Takagi|
The Gekirangers are practitioners of the Fierce Beast-Fist Beast-Art style of Kung-Fu, which allows them to summon incredible power through a unique brand of Ki energy powered by the desire to fight selflessly called Geki. The style is separated into three variations pertaining to the Body, Heart, and Mind of the user.
Retsu is the Mind of the three core Gekirangers and uses the Fierce Beast Jaguar-Fist style.