musashiseki bombers, watabe keisuke, lafiel, seikai no senki, absurdres, highres, official art, scan, 1girl, ball, beachball, bikini, blue hair, breasts, cleavage, cover, cover page, earrings, elf, female focus, forehead jewel, heart, jewelry, long hair, lowleg, lowleg bikini, navel, parted bangs, plaid background, pointy ears, purple eyes, red bikini, see-through clothes, sideboob, smile, solo, standing, swimsuit, thigh gap, very long hair