- Main article: Gatas Brilhantes H.P.
|Affiliation||Name||Little Gatas||Gatas Youth||Notes|
|Berryz Koubou||Sudo Maasa||1||Goalkeeper||7||Blue||Goalkeeper|
|℃-ute||Suzuki Airi||2||Field player||13||Field player|
|Berryz Koubou||Tsugunaga Momoko||4||1||Orange||Goalkeeper|
|℃-ute||Yajima Maimi||5||4||Field player||Sub-Captain|
|Murakami Megumi||6||6||Blue||Left in 2006|
|Berryz Koubou||Natsuyaki Miyabi||7||8||Blue|
|Berryz Koubou||Kumai Yurina||9||10||Blue|
|Berryz Koubou||Shimizu Saki||11||3||Blue||Captain|
|Arihara Kanna||13||Field player||N/A|
|Berryz Koubou||Tokunaga Chinami||14||5||Orange||Field player|
|Hello Pro Egg||Tanaka Anri||16||16||Blue||Inactive|
|Berryz Koubou||Ishimura Maiha||N/A||9||Blue||Left in 2005|
In October 2004, the team got its start when the 15 members of Hello! Project Kids and two futsal trainees from Hello Pro Egg formed a team named "Gatas Youth" for the 2004 Hello! Project Sports Festival. Gatas Youth split up into two smaller teams (Orange and Blue) and played each other at the sports festival on November 15 and December 5.
In early 2005, several members of Gatas Youth participated in Gatas Brilhantes H.P. practices.
In February 2006, the team was revived and renamed "Little Gatas" with Arihara Kanna as a new player.
In March 2006, they participated in the HELLO! PROJECT SPORTS FESTIVAL 2006, but lost 0-2.
In August 2006, several members of Little Gatas merged together with foreign exchange student Shimmin and a few members of Gatas Brilhantes H.P. to form Mix Gatas. This team was active solely for the run of the Odaiba Bouken Ou Skylark Tournament that summer to fill in for absences in Gatas Brilhantes H.P. Around this time, Tanaka Anri became inactive due to her academic studies.
In April 2007, Little Gatas was dissolved, and Umeda Erika, Shimizu Saki, Yajima Maimi, Tokunaga Chinami, Sudo Maasa, Natsuyaki Miyabi, Nakajima Saki, Suzuki Airi, and Muto Mika were absorbed by Gatas Brilhantes H.P. as new members.
- 2004.11.14 - Hello! Project Sports Festival 2004 in Aichi (as Gatas Youth)
- 2004.12.05 - Hello! Project Sports Festival 2004 in Saitama (as Gatas Youth)
- 2006.03.19 - Hello! Project Sports Festival 2006 in Saitama vs FANTASISTA [L 0-2]