Character:

mutsuki \(tsutaya\) \(blue archive\), red halo, pointy ears, purple eyes, side ponytail

Outfit:

black hair flower, red cross black choker, plaid bikini, front-tie bikini top, highleg bikini, black bow thigh strap, white shorts, cutoffs, red plaid belt, anklet, sandals

Option:

heart-shaped eyewear, eyewear on head, holding water gun