nero claudius (swimsuit caster) (fate)
Nero Claudius as a Caster-class Servant during the summer 2017 event in Fate/Grand Order.
Her swimsuit is a red-and-white criss-cross halter striped bikini top and matching side-tie bikini bottom. Her hair is also changed into twintails.
This swimsuit was later released as a DLC costume in Fate/Extella Link, given the name Burning Bikini.