minamoto_no_raikou_(swimsuit_lancer)_(third_ascension)_(fate)
Raikou Swimsuit Lancer in her Third Ascension swimsuit from Fate/Grand Order. While her purple bikini is the same as her First Ascension form, she no longer has the veiled ichimegasa and instead carries a multicolored sash tied with blue flower-printed ornaments. She also has a black leg guard on her left leg.
It is best to tag this Ascension when the sash and/or leg guard are present, since those are the only elements that differ from her First Ascension bikini.