2boys, back, black_male_swimwear, blonde_hair, blue_shirt, bpadult, brown_hair, cloud, day, flip-flops, gran_(granblue_fantasy), gran_(summer)_(granblue_fantasy), granblue_fantasy, looking_away, male_focus, male_swimwear, multiple_boys, official_alternate_costume, outdoors, sandals, seofon_(eternal's_summer_vacation)_(granblue_fantasy), seofon_(granblue_fantasy), shirt, short_hair, sitting, sky, swim_briefs, white_male_swimwear, white_shirt