otori ai, yumeutsutsu re:master, game cg, non-web source, official art, 2girls, ^ ^, applying sunscreen, beach, bikini, bikini bottom under shorts, bikini under clothes, blue bikini, blue eyes, blush, bottle, breasts, brown hair, closed eyes, dutch angle, floral print one-piece swimsuit, frilled one-piece swimsuit, frills, frown, grey shorts, hair ornament, hairclip, holding, holding bottle, holding sunscreen, long hair, looking at another, lying, median furrow, multiple girls, nose blush, on stomach, one-piece swimsuit, open clothes, open mouth, outdoors, parallel hairclips, pink one-piece swimsuit, short hair, shorts, siblings, sisters, small breasts, swimsuit, towel, transparent bag, untied bikini, yanagiya kokoro