1boy 6+girls :d ainselph_thalasa_neptuna arms_up bangs beach bikini bikini_top black_hair black_swimsuit blue_hair blue_sky braid breasts casual_one-piece_swimsuit chastille_lilqvist closed_eyes cloud comta copyright_name crossed_arms day floating_hair front-tie_bikini front-tie_top green_hair groin hair_bobbles hair_ornament hand_in_hair head_tilt highres horns kuroka_adelhide lilithiera_fauna_hypnoel long_hair looking_at_viewer maou_no_ore_ga_dorei_elf_wo_yome_ni_shitanda_ga_dou_medereba_ii? medium_breasts miniskirt multiple_girls navel nefelia novel_illustration ocean official_art one-piece_swimsuit open_mouth outdoors ponytail red_bikini red_eyes red_hair sarong sideboob silver_hair skirt sky smile swimsuit twin_braids twintails valefor_(maou_no_ore_ga) very_long_hair white_bikini yellow_eyes yellow_skirt zagan_(maou_no_ore_ga)