Also known as: 天使のミズギ, グラビアミズギ2
A costume set in the Idolmaster series. It first appeared as an EXTEND costume called Gravure Swimsuit 2 (グラビアミズギ２) in Idolmaster: Live For You!, and then got renamed to Angel's Swimsuit (天使のミズギ) for Idolmaster 2 onward.