Dokusai. (毒猜.) forms in Osaka (大阪)大阪.
Dokusai. (毒猜.) changes its name to Hanekijouka (半液状化) in late 2009 or early 2010.
Hanekijouka (半液状化) changes its name to Eso (ヱ疽).
Bassist Sakashita Jakusansei (坂下 弱酸性) secedes.
One-day revival is held. Bassist Saoriina (サヲリーナ) (ex.KALAVINKA (カラビンカ)) act as support member.
Eso (ヱ疽) was a visual kei band in Osaka. They were active from 2009 and are now disbanded.