Female Byleth from Fire Emblem in her summer attire from the Fire Emblem Heroes 2020 Overseas Memories banner. Drawn by Cuboon.
She wears a Black Bikini with a Halterneck and a pink Tassel hanging between the breasts, a black and brown Capelet hanging off of one shoulder, a red Hair Flower, Sandals with an Ankle Ribbon that are Asymmetrical Footwear, and a Belt holding a Dagger with a purple sheathe. She carries a set of percusors (one per hand) that vaguely resemble palm trees with purple foliage.
Possible to see her along with Rhea (Fire Emblem), the secondary character of the Duo Unit.