altean, cecilia immergreen, cecilia immergreen (1st costume), hololive, hololive english, absurdres, highres, 1girl, arm up, ascot, bow, corset, detached collar, detached sleeves, doll joints, gradient hair, green bow, green corset, green eyes, green hair, green skirt, grey hair, joints, multicolored hair, multiple views, one eye closed, ponytail, red ascot, romper, skirt, strapless romper, tongue, tongue out, virtual youtuber, white romper, winding key