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|Dia Lady promoting Lady Mermaid|
|Associated Acts||Mellowquad, HI-FIN, Berryz Koubou, ℃-ute|
After releasing "Lady Mermaid" in August 2013, the duo became inactive.
In March 2016, Dia Lady's profile was deleted from the SATOYAMA movement official website.
- [2013.08.07] Lady Mermaid / Eiya-sa! Brother / Kaigan Seisou Danshi - with Mellowquad and HI-FIN
- The group name comes from diamonds, one of the hardest and most valuable stones in nature, and the fact it is the birthstone for both members.
- The unit was described as a one and only, top class diva duo.
- It is the only SATOUMI movement group not to have any members from the SATOYAMA movement.
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