The background is a conference room、wall、door

(worst quality, low quality:1.4), (lowres, depth of field, blurry:1.2), (film grain, jpeg artifacts:1.2), (censored, censorship), watermark, signature, artist name, (greyscale, monochrome:1.0), (bad-hands-5:1.2), bad_quality, art by bad-artist, 3d, cross-eyed, (cartoon:1.2), (anime screencap:1.5), anime coloring, (2d)