castellayaki, koseki bijou, koseki bijou (1st costume), hololive, hololive english, absurdres, highres, 1girl, black corset, chest jewel, closed mouth, colored inner hair, corset, detached sleeves, dress, gem, glasses, gradient hair, grey hair, hand on own chin, heart, jewel under eye, long hair, looking at viewer, material growth, metal wings, multicolored hair, pink hair, purple eyes, purple gemstone, purple hair, round eyewear, simple background, single detached sleeve, solo, virtual youtuber, white background, white dress