2girls, blue_eyes, blue_hair, blue_one-piece_swimsuit, breasts, brown_hair, competition_swimsuit, crossover, ereka, grin, kamishiro_sui, love_live!, love_live!_sunshine!!, medium_breasts, multiple_girls, one-piece_swimsuit, open_mouth, pool, poolside, round_teeth, salute, short_hair, smile, swimsuit, teeth, tokyo_7th_sisters, upper_teeth_only, watanabe_you