Continuous session Hiyokogumi (ひよこ組) forms.
Support drummer DORAMI (ドラミ) is officially credited as nekogata support (ネコ型サポート) {cat-type support}.
Each of the band's lives is under a slightly different name e.g. Hiyokogumi @ Namachuu 1hatame (ひよこ組@生中1杯目) which means something like “Hiyokogumi @ 1st cupful.”
First live is held.
?. [Hiyokogumi @ Namachuu 1hatame (ひよこ組@生中1杯目)]
V. Piisuke (雛) / G. Ironyan (色にゃん) / G. HAiJI (ハィヂ) / B. Yuki (遊悸) / Support D. DORAMI (ドラミ)
Keiki (けぃき) and MOMOchan (モモちゃん) act as guest vocalists and Takumi (臣) as guest guitarist.
?. [Hiyokogumi @ Namachuu 2hatame (ひよこ組@生中2杯目)]
V. Piisuke (雛) / Guest V. Keiki (けぃき) / Guest V. MOMOchan (モモちゃん) / G. Ironyan (色にゃん) / G. HAiJI (ハィヂ) / Guest G. Takumi (臣) / B. Yuki (遊悸) / Support D. DORAMI (ドラミ)
[Hiyokogumi @ KOTE (ひよこ組@コテ)]
?. Special kote kei unit Hiyokogumi @ KOTE (ひよこ組@コテ) with alternate members / P. The band sells a limited photoset on this / D. -live
V. Piisuke (雛) / G. Ironyan (色にゃん) / G. Yuki (雪) / B. Yu~ji (ゆ~ぢ) / Support D. Tsubacchi (つばっち)
?. [Hiyokogumi @ Namachuu 3hatame (ひよこ組@生中3杯目)]
V. Piisuke (雛) / G. Ironyan (色にゃん) / G. HAiJI (ハィヂ) / B. Yuki (遊悸) / Support D. DORAMI (ドラミ)
Last(?) live is held. A DVD is freely distributed to those who reserved tickets through the band.
Guitarist HAiJI (ハィヂ) graduates from the band. Guitarist EREKUn (エレクん) and drummer Tsubacchi (つばっち) join.
By this time (possibly earlier), bassist Yuki (遊悸) changes his name to Yukkii (ゆっきー).
?. [Hiyokogumi @ Namachuu 4hatame (ひよこ組@生中4杯目)]
V. Piisuke (雛) / G. Ironyan (色にゃん) / G. EREKUn (エレクん) / B. Yukkii (ゆっきー) / D. Tsubacchi (つばっち)
Hiyokogumi (ひよこ組) disbands(?)
The new continuous session of all members, SYLVANIAN FAMILIES (シルバニアファミリー), forms(?).
It's unclear if the members considered Hiyokogumi (ひよこ組) and SYLVANIAN FAMILIES (シルバニアファミリー) to be the same band with a name change or two distinct bands.
Hiyokogumi (ひよこ組) was a visual kei band. They were active from 2007 to 2008 and are now disbanded.