2girls, bangs, bare arms, bare shoulders, blush, breasts, cleavage, collarbone, echocalypse, firentia (echocalypse), hair between eyes, hair bun, holding, hyonee, large breasts, long hair, looking at viewer, multiple girls, naked towel, onsen, orange eyes, parted lips, red eyes, red hair, single hair bun, sitting, smile, thighs, towel