1girl arknights arm_at_side ass_visible_through_thighs bangs bare_shoulders between_breasts bikini black_bikini black_gloves blue_hair blush breasts ch'en_(arknights) cleavage closed_mouth cowboy_shot detached_collar dragon_girl dragon_horns dragon_tail fingerless_gloves gloves holding holding_sword holding_weapon horns id_card large_breasts looking_at_viewer low_twintails navel necktie necktie_between_breasts pink_eyes sheath sheathed simple_background solo stomach swimsuit sword tail twintails underboob v-shaped_eyebrows weapon weapon_on_back white_background yellow_necktie yuzuruka_(bougainvillea)