Spin Aqua were a short-lived musical project between the model Anna Tsuchiya and the former Oblivion Dust guitarist K.A.Z.
The band debuted with the single "Unchained", which was followed up with Spin Aqua's first concert in December at the Tokyo Bay NK Hall at the Devilock '02 concert.
Spin Aqua's debut album and debut DVD release, Pisces and Spin Aqua Films - 1st Session, were both released a month after the last single.
The album fared similarly poorly on the charts, reaching a low position of No. 187.
The band would later slip into hiatus due to Tsuchiya's pregnancy and engagement to fellow model Joshua.