Adult Tiki from Fire Emblem specifically when dressed in her summer attire from the Fire Emblem Heroes 2017 Ylissean Summer banner.
The outfit consists of a Red Bikini with a Front-Tie Top, a pink Sash, red and heeled Sandals, triple Anklets, Bracers, and a golden Choker.
May feature her weapon: a long Stick and a Watermelon.
Note that it's possible (especially for older artwork), to depict Adult Tiki in a swimsuit without it being the one described above, in which case this tag should not be used.