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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. Laterwards, in March 2016, Dia Lady's profile was deleted from the Satoyama Movement official page, making any further activities obsolete.
- [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.